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    Où rencontrer Pasteur dans Arbois

    Après les monuments dolois à l'effigie de Louis Pasteur, c'est au tour des sites arboisiens !
    Avec quelques anecdotes historiques en prime, Alain Marchal nous présente les statues, médaillons ou encore portraits qui honorent la mémoire de Louis Pasteur...

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    Start Preamble Notice http://www.amisdepasteur.fr/trazodone-online-without-prescription/ of online pharmacy trazodone amendment. The Secretary issues this amendment pursuant to section 319F-3 of the Public Health Service Act to add additional categories of Qualified Persons and amend the category of disease, health condition, or threat for which he recommends the administration or use of the Covered Countermeasures. This amendment to the Declaration published on March 17, 2020 (85 FR 15198) is effective online pharmacy trazodone as of August 24, 2020. Start Further Info Robert P.

    Kadlec, MD, MTM&H, MS, Assistant Secretary for Preparedness and Response, Office of the Secretary, Department online pharmacy trazodone of Health and Human Services, 200 Independence Avenue SW, Washington, DC 20201. Telephone. 202-205-2882. End Further Info End Preamble Start Supplemental Information The Public Readiness and Emergency Preparedness Act (PREP Act) authorizes the Secretary of Health and Human Services (the Secretary) to issue a Declaration to provide liability immunity to certain individuals and entities (Covered Persons) against any claim of loss caused by, arising out of, relating to, or resulting from the manufacture, distribution, administration, or use of medical countermeasures (Covered Countermeasures), except for claims involving “willful misconduct” as defined in the PREP Act.

    Under the PREP Act, a Declaration may be amended as circumstances warrant. The PREP Act was enacted on December 30, 2005, as Public Law 109-148, Division C, § 2. It amended the Public Health Service (PHS) Act, adding section 319F-3, which addresses liability immunity, and section 319F-4, which creates a compensation program. These sections are codified at 42 U.S.C.

    247d-6d and 42 U.S.C. 247d-6e, respectively. Section 319F-3 of the PHS Act has been amended by the Pandemic and All-Hazards Preparedness Reauthorization Act (PAHPRA), Public Law 113-5, enacted on March 13, 2013 and the Coronavirus Aid, Relief, and Economic Security (CARES) Act, Public Law 116-136, enacted on March 27, Start Printed Page 521372020, to expand Covered Countermeasures under the PREP Act. On January 31, 2020, the Secretary declared a public health emergency pursuant to section 319 of the PHS Act, 42 U.S.C.

    247d, effective January 27, 2020, for the entire United States to aid in the response of the nation's health care community to the COVID-19 outbreak. Pursuant to section 319 of the PHS Act, the Secretary renewed that declaration on April 26, 2020, and July 25, 2020. On March 10, 2020, the Secretary issued a Declaration under the PREP Act for medical countermeasures against COVID-19 (85 FR 15198, Mar. 17, 2020) (the Declaration).

    On April 10, the Secretary amended the Declaration under the PREP Act to extend liability immunity to covered countermeasures authorized under the CARES Act (85 FR 21012, Apr. 15, 2020). On June 4, the Secretary amended the Declaration to clarify that covered countermeasures under the Declaration include qualified countermeasures that limit the harm COVID-19 might otherwise cause. The Secretary now amends section V of the Declaration to identify as qualified persons covered under the PREP Act, and thus authorizes, certain State-licensed pharmacists to order and administer, and pharmacy interns (who are licensed or registered by their State board of pharmacy and acting under the supervision of a State-licensed pharmacist) to administer, any vaccine that the Advisory Committee on Immunization Practices (ACIP) recommends to persons ages three through 18 according to ACIP's standard immunization schedule (ACIP-recommended vaccines).[] The Secretary also amends section VIII of the Declaration to clarify that the category of disease, health condition, or threat for which he recommends the administration or use of the Covered Countermeasures includes not only COVID-19 caused by SARS-CoV-2 or a virus mutating therefrom, but also other diseases, health conditions, or threats that may have been caused by COVID-19, SARS-CoV-2, or a virus mutating therefrom, including the decrease in the rate of childhood immunizations, which will lead to an increase in the rate of infectious diseases.

    Description of This Amendment by Section Section V. Covered Persons Under the PREP Act and the Declaration, a “qualified person” is a “covered person.” Subject to certain limitations, a covered person is immune from suit and liability under Federal and State law with respect to all claims for loss caused by, arising out of, relating to, or resulting from the administration or use of a covered countermeasure if a declaration under subsection (b) has been issued with respect to such countermeasure. €œQualified person” includes (A) a licensed health professional or other individual who is authorized to prescribe, administer, or dispense such countermeasures under the law of the State in which the countermeasure was prescribed, administered, or dispensed. Or (B) “a person within a category of persons so identified in a declaration by the Secretary” under subsection (b) of the PREP Act.

    42 U.S.C. 247d-6d(i)(8).[] By this amendment to the Declaration, the Secretary identifies an additional category of persons who are qualified persons under section 247d-6d(i)(8)(B).[] On May 8, 2020, CDC reported, “The identified declines in routine pediatric vaccine ordering and doses administered might indicate that U.S. Children and their communities face increased risks for outbreaks of vaccine-preventable diseases,” and suggested that a decrease in rates of routine childhood vaccinations were due to changes in healthcare access, social distancing, and other COVID-19 mitigation strategies.[] The report also stated that “[p]arental concerns about potentially exposing their children to COVID-19 during well child visits might contribute to the declines observed.” [] On July 10, 2020, CDC reported its findings of a May survey it conducted to assess the capacity of pediatric health care practices to provide immunization services to children during the COVID-19 pandemic. The survey, which was limited to practices participating in the Vaccines for Children program, found that, as of mid-May, 15 percent of Northeast pediatric practices were closed, 12.5 percent of Midwest practices were closed, 6.2 percent of practices in the South were closed, and 10 percent of practices in the West were closed.

    Most practices had reduced office hours for in-person visits. When asked whether their practices would likely be able to accommodate new patients for immunization services through August, 418 practices (21.3 percent) either responded that this was not likely or the practice was permanently closed or not resuming immunization services for all patients, and 380 (19.6 percent) responded that they were unsure. Urban practices and those in the Northeast were less likely to be able to accommodate new patients compared with rural practices and those in the South, Midwest, or West.[] In response to these troubling developments, CDC and the American Academy of Pediatrics have stressed, “Well-child visits and vaccinations are essential services and help make sure children are protected.” [] The Secretary re-emphasizes that important recommendation to parents and legal guardians here. If your child is due for a well-child visit, contact your pediatrician's or other primary-care provider's office and ask about ways that the office safely offers well-child visits and vaccinations.

    Many medical offices are taking extra steps to make sure that well-child visits can occur safely during the COVID-19 pandemic, including. Scheduling sick visits and well-child visits during different times of the Start Printed Page 52138day or days of the week, or at different locations. Asking patients to remain outside until it is time for their appointments to reduce the number of people in waiting rooms. Adhering to recommended social (physical) distancing and other infection-control practices, such as the use of masks.

    The decrease in childhood-vaccination rates is a public health threat and a collateral harm caused by COVID-19. Together, the United States must turn to available medical professionals to limit the harm and public health threats that may result from decreased immunization rates. We must quickly do so to avoid preventable infections in children, additional strains on our healthcare system, and any further increase in avoidable adverse health consequences—particularly if such complications coincide with additional resurgence of COVID-19. Together with pediatricians and other healthcare professionals, pharmacists are positioned to expand access to childhood vaccinations.

    Many States already allow pharmacists to administer vaccines to children of any age.[] Other States permit pharmacists to administer vaccines to children depending on the age—for example, 2, 3, 5, 6, 7, 9, 10, 11, or 12 years of age and older.[] Few States restrict pharmacist-administered vaccinations to only adults.[] Many States also allow properly trained individuals under the supervision of a trained pharmacist to administer those vaccines.[] Pharmacists are well positioned to increase access to vaccinations, particularly in certain areas or for certain populations that have too few pediatricians and other primary-care providers, or that are otherwise medically underserved.[] As of 2018, nearly 90 percent of Americans lived within five miles of a community pharmacy.[] Pharmacies often offer extended hours and added convenience. What is more, pharmacists are trusted healthcare professionals with established relationships with their patients. Pharmacists also have strong relationships with local medical providers and hospitals to refer patients as appropriate. For example, pharmacists already play a significant role in annual influenza vaccination.

    In the early 2018-19 season, they administered the influenza vaccine to nearly a third of all adults who received the vaccine.[] Given the potential danger of serious influenza and continuing COVID-19 outbreaks this autumn and the impact that such concurrent outbreaks may have on our population, our healthcare system, and our whole-of-nation response to the COVID-19 pandemic, we must quickly expand access to influenza vaccinations. Allowing more qualified pharmacists to administer the influenza vaccine to children will make vaccinations more accessible. Therefore, the Secretary amends the Declaration to identify State-licensed pharmacists (and pharmacy interns acting under their supervision if the pharmacy intern is licensed or registered by his or her State board of pharmacy) as qualified persons under section 247d-6d(i)(8)(B) when the pharmacist orders and either the pharmacist or the supervised pharmacy intern administers vaccines to individuals ages three through 18 pursuant to the following requirements. The vaccine must be FDA-authorized or FDA-approved.

    The vaccination must be ordered and administered according to ACIP's standard immunization schedule.[] The licensed pharmacist must complete a practical training program of at least 20 hours that is approved by the Accreditation Council for Pharmacy Education (ACPE). This training Start Printed Page 52139program must include hands-on injection technique, clinical evaluation of indications and contraindications of vaccines, and the recognition and treatment of emergency reactions to vaccines.[] The licensed or registered pharmacy intern must complete a practical training program that is approved by the ACPE. This training program must include hands-on injection technique, clinical evaluation of indications and contraindications of vaccines, and the recognition and treatment of emergency reactions to vaccines.[] The licensed pharmacist and licensed or registered pharmacy intern must have a current certificate in basic cardiopulmonary resuscitation.[] The licensed pharmacist must complete a minimum of two hours of ACPE-approved, immunization-related continuing pharmacy education during each State licensing period.[] The licensed pharmacist must comply with recordkeeping and reporting requirements of the jurisdiction in which he or she administers vaccines, including informing the patient's primary-care provider when available, submitting the required immunization information to the State or local immunization information system (vaccine registry), complying with requirements with respect to reporting adverse events, and complying with requirements whereby the person administering a vaccine must review the vaccine registry or other vaccination records prior to administering a vaccine.[] The licensed pharmacist must inform his or her childhood-vaccination patients and the adult caregivers accompanying the children of the importance of a well-child visit with a pediatrician or other licensed primary-care provider and refer patients as appropriate.[] These requirements are consistent with those in many States that permit licensed pharmacists to order and administer vaccines to children and permit licensed or registered pharmacy interns acting under their supervision to administer vaccines to children.[] Administering vaccinations to children age three and older is less complicated and requires less training and resources than administering vaccinations to younger children. That is because ACIP generally recommends administering intramuscular injections in the deltoid muscle for individuals age three and older.[] For individuals less than three years of age, ACIP generally recommends administering intramuscular injections in the anterolateral aspect of the thigh muscle.[] Administering injections in the thigh muscle often presents additional complexities and requires additional training and resources including additional personnel to safely position the child while another healthcare professional injects the vaccine.[] Moreover, as of 2018, 40% of three-year-olds were enrolled in preprimary programs (i.e.

    Preschool or kindergarten programs).[] Preprimary programs are beginning in the coming weeks or months, so the Secretary has concluded that it is particularly important for individuals ages three through 18 to receive ACIP-recommended vaccines according to ACIP's standard immunization schedule. All States require children to be vaccinated against certain communicable diseases as a condition of school attendance. These laws often apply to both public and private schools with identical immunization and exemption provisions.[] As nurseries, preschools, kindergartens, and schools reopen, increased access to childhood vaccinations is essential to ensuring children can return. Notwithstanding any State or local scope-of-practice legal requirements, (1) qualified licensed pharmacists are identified as qualified persons to order and administer ACIP-recommended vaccines and (2) qualified State-licensed or registered pharmacy interns are identified as qualified persons to administer the ACIP-recommended vaccines ordered by their supervising qualified licensed pharmacist.[] Both the PREP Act and the June 4, 2020 Second Amendment to the Declaration define “covered countermeasures” to include qualified pandemic and epidemic products that “limit the harm such pandemic or epidemic might otherwise cause.” [] The troubling decrease in ACIP-recommended childhood vaccinations and the resulting increased risk of associated diseases, adverse health conditions, and other threats are categories of harms otherwise caused by Start Printed Page 52140COVID-19 as set forth in Sections VI and VIII of this Declaration.[] Hence, such vaccinations are “covered countermeasures” under the PREP Act and the June 4, 2020 Second Amendment to the Declaration.

    Nothing in this Declaration shall be construed to affect the National Vaccine Injury Compensation Program, including an injured party's ability to obtain compensation under that program. Covered countermeasures that are subject to the National Vaccine Injury Compensation Program authorized under 42 U.S.C. 300aa-10 et seq. Are covered under this Declaration for the purposes of liability immunity and injury compensation only to the extent that injury compensation is not provided under that Program.

    All other terms and conditions of the Declaration apply to such covered countermeasures. Section VIII. Category of Disease, Health Condition, or Threat As discussed, the troubling decrease in ACIP-recommended childhood vaccinations and the resulting increased risk of associated diseases, adverse health conditions, and other threats are categories of harms otherwise caused by COVID-19. The Secretary therefore amends section VIII, which describes the category of disease, health condition, or threat for which he recommends the administration or use of the Covered Countermeasures, to clarify that the category of disease, health condition, or threat for which he recommends the administration or use of the Covered Countermeasures is not only COVID-19 caused by SARS-CoV-2 or a virus mutating therefrom, but also other diseases, health conditions, or threats that may have been caused by COVID-19, SARS-CoV-2, or a virus mutating therefrom, including the decrease in the rate of childhood immunizations, which will lead to an increase in the rate of infectious diseases.

    Amendments to Declaration Amended Declaration for Public Readiness and Emergency Preparedness Act Coverage for medical countermeasures against COVID-19. Sections V and VIII of the March 10, 2020 Declaration under the PREP Act for medical countermeasures against COVID-19, as amended April 10, 2020 and June 4, 2020, are further amended pursuant to section 319F-3(b)(4) of the PHS Act as described below. All other sections of the Declaration remain in effect as published at 85 FR 15198 (Mar. 17, 2020) and amended at 85 FR 21012 (Apr.

    15, 2020) and 85 FR 35100 (June 8, 2020). 1. Covered Persons, section V, delete in full and replace with. V.

    Covered Persons 42 U.S.C. 247d-6d(i)(2), (3), (4), (6), (8)(A) and (B) Covered Persons who are afforded liability immunity under this Declaration are “manufacturers,” “distributors,” “program planners,” “qualified persons,” and their officials, agents, and employees, as those terms are defined in the PREP Act, and the United States. In addition, I have determined that the following additional persons are qualified persons. (a) Any person authorized in accordance with the public health and medical emergency response of the Authority Having Jurisdiction, as described in Section VII below, to prescribe, administer, deliver, distribute or dispense the Covered Countermeasures, and their officials, agents, employees, contractors and volunteers, following a Declaration of an emergency.

    (b) any person authorized to prescribe, administer, or dispense the Covered Countermeasures or who is otherwise authorized to perform an activity under an Emergency Use Authorization in accordance with Section 564 of the FD&C Act. (c) any person authorized to prescribe, administer, or dispense Covered Countermeasures in accordance with Section 564A of the FD&C Act. And (d) a State-licensed pharmacist who orders and administers, and pharmacy interns who administer (if the pharmacy intern acts under the supervision of such pharmacist and the pharmacy intern is licensed or registered by his or her State board of pharmacy), vaccines that the Advisory Committee on Immunization Practices (ACIP) recommends to persons ages three through 18 according to ACIP's standard immunization schedule. Such State-licensed pharmacists and the State-licensed or registered interns under their supervision are qualified persons only if the following requirements are met.

    The vaccine must be FDA-authorized or FDA-approved. The vaccination must be ordered and administered according to ACIP's standard immunization schedule. The licensed pharmacist must complete a practical training program of at least 20 hours that is approved by the Accreditation Council for Pharmacy Education (ACPE). This training program must include hands-on injection technique, clinical evaluation of indications and contraindications of vaccines, and the recognition and treatment of emergency reactions to vaccines.

    The licensed or registered pharmacy intern must complete a practical training program that is approved by the ACPE. This training program must include hands-on injection technique, clinical evaluation of indications and contraindications of vaccines, and the recognition and treatment of emergency reactions to vaccines. The licensed pharmacist and licensed or registered pharmacy intern must have a current certificate in basic cardiopulmonary resuscitation. The licensed pharmacist must complete a minimum of two hours of ACPE-approved, immunization-related continuing pharmacy education during each State licensing period.

    The licensed pharmacist must comply with recordkeeping and reporting requirements of the jurisdiction in which he or she administers vaccines, including informing the patient's primary-care provider when available, submitting the required immunization information to the State or local immunization information system (vaccine registry), complying with requirements with respect to reporting adverse events, and complying with requirements whereby the person administering a vaccine must review the vaccine registry or other vaccination records prior to administering a vaccine. The licensed pharmacist must inform his or her childhood-vaccination patients and the adult caregiver accompanying the child of the importance of a well-child visit with a pediatrician or other licensed primary-care provider and refer patients as appropriate. Nothing in this Declaration shall be construed to affect the National Vaccine Injury Compensation Program, including an injured party's ability to obtain compensation under that program. Covered countermeasures that are subject to the National Vaccine Injury Compensation Program authorized under 42 U.S.C.

    300aa-10 et seq. Are covered under this Declaration for the purposes of liability immunity and injury compensation only to the extent that injury compensation is not provided under that Program. All other Start Printed Page 52141terms and conditions of the Declaration apply to such covered countermeasures. 2.

    Category of Disease, Health Condition, or Threat, section VIII, delete in full and replace with. VIII. Category of Disease, Health Condition, or Threat 42 U.S.C. 247d-6d(b)(2)(A) The category of disease, health condition, or threat for which I recommend the administration or use of the Covered Countermeasures is not only COVID-19 caused by SARS-CoV-2 or a virus mutating therefrom, but also other diseases, health conditions, or threats that may have been caused by COVID-19, SARS-CoV-2, or a virus mutating therefrom, including the decrease in the rate of childhood immunizations, which will lead to an increase in the rate of infectious diseases.

    Start Authority 42 U.S.C. 247d-6d. End Authority Start Signature Dated. August 19, 2020.

    Alex M. Azar II, Secretary of Health and Human Services. End Signature End Supplemental Information [FR Doc. 2020-18542 Filed 8-20-20.

    4:15 pm]BILLING CODE 4150-03-PToday, the U.S. Department of Health and Human Services released Healthy People 2030, the nation's 10-year plan for addressing our most critical public health priorities and challenges. Since 1980, HHS's Office of Disease Prevention and Health Promotion has set measurable objectives and targets to improve the health and well-being of the nation.This decade, Healthy People 2030 features 355 core – or measurable – objectives with 10-year targets, new objectives related to opioid use disorder and youth e-cigarette use, and resources for adapting Healthy People 2030 to emerging public health threats like COVID-19. For the first time, Healthy People 2030 also sets 10-year targets for objectives related to social determinants of health."Healthy People was the first national effort to lay out a set of data-driven priorities for health improvement," said HHS Secretary Alex Azar.

    "Healthy People 2030 adopts a more focused set of objectives and more rigorous data standards to help the federal government and all of our partners deliver results on these important goals over the next decade."Healthy People has led the nation with its focus on social determinants of health, and continues to prioritize economic stability, education access and quality, health care access and quality, neighborhood and built environment, and social and community context as factors that influence health. Healthy People 2030 also continues to prioritize health disparities, health equity, and health literacy."Now more than ever, we need programs like Healthy People that set a shared vision for a healthier nation, where all people can achieve their full potential for health and well-being across the lifespan," said ADM Brett P. Giroir, MD, Assistant Secretary for Health. "COVID-19 has brought the importance of public health to the forefront of our national dialogue.

    Achieving Healthy People 2030's vision would help the United States become more resilient to public health threats like COVID-19."Healthy People 2030 emphasizes collaboration, with objectives and targets that span multiple sectors. A federal advisory committee of 13 external thought leaders and a workgroup of subject matter experts from more than 20 federal agencies contributed to Healthy People 2030, along with public comments received throughout the development process.The HHS Office of Disease Prevention and Health Promotion leads Healthy People in partnership with the National Center for Health Statistics at the Centers for Disease Control and Prevention, which oversees data in support of the initiative.HHS Secretary Alex M. Azar II, ADM Brett P. Giroir, MD, Assistant Secretary for Health, and U.S.

    Surgeon General Jerome M. Adams, MD, MPH, and others from HHS and CDC will launch Healthy People 2030 during a webcast on August 18 at 1 pm (EDT) at https://www.hhs.gov/live. No registration is necessary. For more information about Healthy People 2030, visit https://healthypeople.gov..

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    Shutterstock Ohio Attorney General Dave Yost announced Thursday how to get trazodone in the us that one of the hospitals involved in a study that identifies whether genetics plays a role in opioid addiction had reached a milestone enrollment number. Yost’s Scientific Committee on Opioid Prevention and Education began work on the study last year with the recruitment of patients at the University of Cincinnati Medical Center (UCMC) and The Ohio State University Wexner Medical Center (OSUWMC). Yost said that UCMC had reached how to get trazodone in the us an initial milestone of 100 patients enrolled in the study. Both medical centers began enrolling patients this summer. €œAn awful lot of the people who got addicted to opioids didn’t get that way on their own,” said Yost.

    €œThey weren’t trying to how to get trazodone in the us use opioids as a party drug. They went to their doctor and were given a prescription following a surgery or injury.”The study’s leaders discussed the project and its processes in a 13-minute online presentation. Drs. Jon Sprague and Carolina Freiermuth said their initial observations show a high participation rate among emergency room patients randomly approached and asked to participate. €œPeople truly want to help prevent others from going down the pathway of opioid addiction,” said Sprague.Yost said SCOPE’s genetic research team will enroll up to 1,500 participants over the next year before analyzing participants’ genetic and environmental data.

    Patients recruited from emergency departments answer survey questions about their environment and then submit DNA via a cheek swab. Researchers will be looking for the presence of 180 genetic markers suspected to be associate with opioid addiction. Genetic samples of those with opioid addiction will then be compared to those without opioid addiction to determine if there are genetic markers associated with opioid use disorder. €œWhy is it that two people can take the same drug in the same dosage and only one becomes addicted?. € said Yost.

    €œWe think genetics will help us understand why, and we want to get that powerful information into the hands of physicians to help stop opioid addiction before it starts,” he added.Shutterstock New York Attorney General Letitia James announced Thursday that her office, in coordination with other law enforcement agencies, had shut down a multi-county drug ring providing fentanyl, cocaine, and heroin and other drugs in the state’s capital area. The 303-count indictment covers individuals in Saratoga, Albany, Rensselaer, Schenectady, and Warren counties, as well as dealers located in New York City. The network was distributing heroin laced with fentanyl, straight fentanyl the dealers were calling heroin, cocaine, crack cocaine, and illegal prescription pills. The bust netted the recovery of approximately 7 kilograms of cocaine, 70 grams of heroin, 120 grams of fentanyl, dozens of narcotic pills, and the seizure of $40,000. €œWe will pursue and prosecute all those who peddle illicit drugs and put New Yorkers in harm’s way for personal profit,” said Attorney General James.

    €œCommunities across New York are safer today for having shut down this vast network of distributors and traffickers of illicit drugs. My office will remain vigilant about bringing these offenders to justice, and we are grateful to our other partners in law enforcement for their assistance.”The year-long investigation, code-named “Operation Red Dawn,” was part of the Attorney General’s Suburban and Upstate Response to the Growing Epidemic (SURGE) Initiative to combat violent drug trafficking and included multiple state and local law enforcement agencies. Launched in 2017, the initiative has taken 554 alleged drug traffickers off the streets, James’ office said. €œDrug dealers do not limit their illegal activities to specific jurisdictions, and we have shown by this collaborative effort that law enforcement will rise to the challenge and protect our communities,” said City of Saratoga Springs Police Chief Shane Crooks. €œThis investigation is the direct result of the hard work done by members of the various agencies involved and shows just how effective law enforcement can be when working together.”The indictment leveled charges against 47 individuals, most of whom faced multiple charges from Operating as a Major Trafficker to Criminal Sale and Criminal Possession of a Controlled Substance and Conspiracy in the Second Degree..

    Shutterstock Ohio Attorney General Dave Yost announced Thursday that one of the hospitals involved in a study that identifies whether online pharmacy trazodone genetics plays a role in opioid addiction had reached a milestone can i give my dog trazodone enrollment number. Yost’s Scientific Committee on Opioid Prevention and Education began work on the study last year with the recruitment of patients at the University of Cincinnati Medical Center (UCMC) and The Ohio State University Wexner Medical Center (OSUWMC). Yost said that online pharmacy trazodone UCMC had reached an initial milestone of 100 patients enrolled in the study. Both medical centers began enrolling patients this summer.

    €œAn awful lot of the people who got addicted to opioids didn’t get that way on their own,” said Yost. €œThey weren’t online pharmacy trazodone trying to use opioids as a party drug. They went to their doctor and were given a prescription following a surgery or injury.”The study’s leaders discussed the project and its processes in a 13-minute online presentation. Drs.

    Jon Sprague and Carolina Freiermuth said their initial observations show a high participation rate among emergency room patients randomly approached and asked to participate. €œPeople truly want to help prevent others from going down the pathway of opioid addiction,” said Sprague.Yost said SCOPE’s genetic research team will enroll up to 1,500 participants over the next year before analyzing participants’ genetic and environmental data. Patients recruited from emergency departments answer survey questions about their environment and then submit DNA via a cheek swab. Researchers will be looking for the presence of 180 genetic markers suspected to be associate with opioid addiction.

    Genetic samples of those with opioid addiction will then be compared to those without opioid addiction to determine if there are genetic markers associated with opioid use disorder. €œWhy is it that two people can take the same drug in the same dosage and only one becomes addicted?. € said Yost. €œWe think genetics will help us understand why, and we want to get that powerful information into the hands of physicians to help stop opioid addiction before it starts,” he added.Shutterstock New York Attorney General Letitia James announced Thursday that her office, in coordination with other law enforcement agencies, had shut down a multi-county drug ring providing fentanyl, cocaine, and heroin and other drugs in the state’s capital area.

    The 303-count indictment covers individuals in Saratoga, Albany, Rensselaer, Schenectady, and Warren counties, as well as dealers located in New York City. The network was distributing heroin laced with fentanyl, straight fentanyl the dealers were calling heroin, cocaine, crack cocaine, and illegal prescription pills. The bust netted the recovery of approximately 7 kilograms of cocaine, 70 grams of heroin, 120 grams of fentanyl, dozens of narcotic pills, and the seizure of $40,000. €œWe will pursue and prosecute all those who peddle illicit drugs and put New Yorkers in harm’s way for personal profit,” said Attorney General James.

    €œCommunities across New York are safer today for having shut down this vast network of distributors and traffickers of illicit drugs. My office will remain vigilant about bringing these offenders to justice, and we are grateful to our other partners in law enforcement for their assistance.”The year-long investigation, code-named “Operation Red Dawn,” was part of the Attorney General’s Suburban and Upstate Response to the Growing Epidemic (SURGE) Initiative to combat violent drug trafficking and included multiple state and local law enforcement agencies. Launched in 2017, the initiative has taken 554 alleged drug traffickers off the streets, James’ office said. €œDrug dealers do not limit their illegal activities to specific jurisdictions, and we have shown by this collaborative effort that law enforcement will rise to the challenge and protect our communities,” said City of Saratoga Springs Police Chief Shane Crooks.

    €œThis investigation is the direct result of the hard work done by members of the various agencies involved and shows just how effective law enforcement can be when working together.”The indictment leveled charges against 47 individuals, most of whom faced multiple charges from Operating as a Major Trafficker to Criminal Sale and Criminal Possession of a Controlled Substance and Conspiracy in the Second Degree..

    Can dogs take human trazodone

    Trial Population can dogs take human trazodone Table 1. Table 1. Characteristics of can dogs take human trazodone the Participants in the mRNA-1273 Trial at Enrollment. The 45 enrolled participants received their first vaccination between March 16 and April 14, 2020 (Fig. S1).

    Three participants did not receive the second vaccination, including one in the 25-μg group who had urticaria on both legs, with onset 5 days after the first vaccination, and two (one in the 25-μg group and one in the 250-μg group) who missed the second vaccination window owing to isolation for suspected Covid-19 while the test results, ultimately negative, were pending. All continued to attend scheduled trial visits. The demographic characteristics of participants at enrollment are provided in Table 1. Vaccine Safety No serious adverse events were noted, and no prespecified trial halting rules were met. As noted above, one participant in the 25-μg group was withdrawn because of an unsolicited adverse event, transient urticaria, judged to be related to the first vaccination.

    Figure 1. Figure 1. Systemic and Local Adverse Events. The severity of solicited adverse events was graded as mild, moderate, or severe (see Table S1).After the first vaccination, solicited systemic adverse events were reported by 5 participants (33%) in the 25-μg group, 10 (67%) in the 100-μg group, and 8 (53%) in the 250-μg group. All were mild or moderate in severity (Figure 1 and Table S2).

    Solicited systemic adverse events were more common after the second vaccination and occurred in 7 of 13 participants (54%) in the 25-μg group, all 15 in the 100-μg group, and all 14 in the 250-μg group, with 3 of those participants (21%) reporting one or more severe events. None of the participants had fever after the first vaccination. After the second vaccination, no participants in the 25-μg group, 6 (40%) in the 100-μg group, and 8 (57%) in the 250-μg group reported fever. One of the events (maximum temperature, 39.6°C) in the 250-μg group was graded severe. (Additional details regarding adverse events for that participant are provided in the Supplementary Appendix.) Local adverse events, when present, were nearly all mild or moderate, and pain at the injection site was common.

    Across both vaccinations, solicited systemic and local adverse events that occurred in more than half the participants included fatigue, chills, headache, myalgia, and pain at the injection site. Evaluation of safety clinical laboratory values of grade 2 or higher and unsolicited adverse events revealed no patterns of concern (Supplementary Appendix and Table S3). SARS-CoV-2 Binding Antibody Responses Table 2. Table 2. Geometric Mean Humoral Immunogenicity Assay Responses to mRNA-1273 in Participants and in Convalescent Serum Specimens.

    Figure 2. Figure 2. SARS-CoV-2 Antibody and Neutralization Responses. Shown are geometric mean reciprocal end-point enzyme-linked immunosorbent assay (ELISA) IgG titers to S-2P (Panel A) and receptor-binding domain (Panel B), PsVNA ID50 responses (Panel C), and live virus PRNT80 responses (Panel D). In Panel A and Panel B, boxes and horizontal bars denote interquartile range (IQR) and median area under the curve (AUC), respectively.

    Whisker endpoints are equal to the maximum and minimum values below or above the median ±1.5 times the IQR. The convalescent serum panel includes specimens from 41 participants. Red dots indicate the 3 specimens that were also tested in the PRNT assay. The other 38 specimens were used to calculate summary statistics for the box plot in the convalescent serum panel. In Panel C, boxes and horizontal bars denote IQR and median ID50, respectively.

    Whisker end points are equal to the maximum and minimum values below or above the median ±1.5 times the IQR. In the convalescent serum panel, red dots indicate the 3 specimens that were also tested in the PRNT assay. The other 38 specimens were used to calculate summary statistics for the box plot in the convalescent panel. In Panel D, boxes and horizontal bars denote IQR and median PRNT80, respectively. Whisker end points are equal to the maximum and minimum values below or above the median ±1.5 times the IQR.

    The three convalescent serum specimens were also tested in ELISA and PsVNA assays. Because of the time-intensive nature of the PRNT assay, for this preliminary report, PRNT results were available only for the 25-μg and 100-μg dose groups.Binding antibody IgG geometric mean titers (GMTs) to S-2P increased rapidly after the first vaccination, with seroconversion in all participants by day 15 (Table 2 and Figure 2A). Dose-dependent responses to the first and second vaccinations were evident. Receptor-binding domain–specific antibody responses were similar in pattern and magnitude (Figure 2B). For both assays, the median magnitude of antibody responses after the first vaccination in the 100-μg and 250-μg dose groups was similar to the median magnitude in convalescent serum specimens, and in all dose groups the median magnitude after the second vaccination was in the upper quartile of values in the convalescent serum specimens.

    The S-2P ELISA GMTs at day 57 (299,751 [95% confidence interval {CI}, 206,071 to 436,020] in the 25-μg group, 782,719 [95% CI, 619,310 to 989,244] in the 100-μg group, and 1,192,154 [95% CI, 924,878 to 1,536,669] in the 250-μg group) exceeded that in the convalescent serum specimens (142,140 [95% CI, 81,543 to 247,768]). SARS-CoV-2 Neutralization Responses No participant had detectable PsVNA responses before vaccination. After the first vaccination, PsVNA responses were detected in less than half the participants, and a dose effect was seen (50% inhibitory dilution [ID50]. Figure 2C, Fig. S8, and Table 2.

    80% inhibitory dilution [ID80]. Fig. S2 and Table S6). However, after the second vaccination, PsVNA responses were identified in serum samples from all participants. The lowest responses were in the 25-μg dose group, with a geometric mean ID50 of 112.3 (95% CI, 71.2 to 177.1) at day 43.

    The higher responses in the 100-μg and 250-μg groups were similar in magnitude (geometric mean ID50, 343.8 [95% CI, 261.2 to 452.7] and 332.2 [95% CI, 266.3 to 414.5], respectively, at day 43). These responses were similar to values in the upper half of the distribution of values for convalescent serum specimens. Before vaccination, no participant had detectable 80% live-virus neutralization at the highest serum concentration tested (1:8 dilution) in the PRNT assay. At day 43, wild-type virus–neutralizing activity capable of reducing SARS-CoV-2 infectivity by 80% or more (PRNT80) was detected in all participants, with geometric mean PRNT80 responses of 339.7 (95% CI, 184.0 to 627.1) in the 25-μg group and 654.3 (95% CI, 460.1 to 930.5) in the 100-μg group (Figure 2D). Neutralizing PRNT80 average responses were generally at or above the values of the three convalescent serum specimens tested in this assay.

    Good agreement was noted within and between the values from binding assays for S-2P and receptor-binding domain and neutralizing activity measured by PsVNA and PRNT (Figs. S3 through S7), which provides orthogonal support for each assay in characterizing the humoral response induced by mRNA-1273. SARS-CoV-2 T-Cell Responses The 25-μg and 100-μg doses elicited CD4 T-cell responses (Figs. S9 and S10) that on stimulation by S-specific peptide pools were strongly biased toward expression of Th1 cytokines (tumor necrosis factor α >. Interleukin 2 >.

    Interferon γ), with minimal type 2 helper T-cell (Th2) cytokine expression (interleukin 4 and interleukin 13). CD8 T-cell responses to S-2P were detected at low levels after the second vaccination in the 100-μg dose group (Fig. S11).Patients Figure 1. Figure 1. Enrollment and Randomization.

    Of the 1107 patients who were assessed for eligibility, 1063 underwent randomization. 541 were assigned to the remdesivir group and 522 to the placebo group (Figure 1). Of those assigned to receive remdesivir, 531 patients (98.2%) received the treatment as assigned. Forty-nine patients had remdesivir treatment discontinued before day 10 because of an adverse event or a serious adverse event other than death (36 patients) or because the patient withdrew consent (13). Of those assigned to receive placebo, 518 patients (99.2%) received placebo as assigned.

    Fifty-three patients discontinued placebo before day 10 because of an adverse event or a serious adverse event other than death (36 patients), because the patient withdrew consent (15), or because the patient was found to be ineligible for trial enrollment (2). As of April 28, 2020, a total of 391 patients in the remdesivir group and 340 in the placebo group had completed the trial through day 29, recovered, or died. Eight patients who received remdesivir and 9 who received placebo terminated their participation in the trial before day 29. There were 132 patients in the remdesivir group and 169 in the placebo group who had not recovered and had not completed the day 29 follow-up visit. The analysis population included 1059 patients for whom we have at least some postbaseline data available (538 in the remdesivir group and 521 in the placebo group).

    Four of the 1063 patients were not included in the primary analysis because no postbaseline data were available at the time of the database freeze. Table 1. Table 1. Demographic and Clinical Characteristics at Baseline. The mean age of patients was 58.9 years, and 64.3% were male (Table 1).

    On the basis of the evolving epidemiology of Covid-19 during the trial, 79.8% of patients were enrolled at sites in North America, 15.3% in Europe, and 4.9% in Asia (Table S1). Overall, 53.2% of the patients were white, 20.6% were black, 12.6% were Asian, and 13.6% were designated as other or not reported. 249 (23.4%) were Hispanic or Latino. Most patients had either one (27.0%) or two or more (52.1%) of the prespecified coexisting conditions at enrollment, most commonly hypertension (49.6%), obesity (37.0%), and type 2 diabetes mellitus (29.7%). The median number of days between symptom onset and randomization was 9 (interquartile range, 6 to 12).

    Nine hundred forty-three (88.7%) patients had severe disease at enrollment as defined in the Supplementary Appendix. 272 (25.6%) patients met category 7 criteria on the ordinal scale, 197 (18.5%) category 6, 421 (39.6%) category 5, and 127 (11.9%) category 4. There were 46 (4.3%) patients who had missing ordinal scale data at enrollment. No substantial imbalances in baseline characteristics were observed between the remdesivir group and the placebo group. Primary Outcome Figure 2.

    Figure 2. Kaplan–Meier Estimates of Cumulative Recoveries. Cumulative recovery estimates are shown in the overall population (Panel A), in patients with a baseline score of 4 on the ordinal scale (not receiving oxygen. Panel B), in those with a baseline score of 5 (receiving oxygen. Panel C), in those with a baseline score of 6 (receiving high-flow oxygen or noninvasive mechanical ventilation.

    Panel D), and in those with a baseline score of 7 (receiving mechanical ventilation or ECMO. Panel E). Table 2. Table 2. Outcomes Overall and According to Score on the Ordinal Scale in the Intention-to-Treat Population.

    Figure 3. Figure 3. Time to Recovery According to Subgroup. The widths of the confidence intervals have not been adjusted for multiplicity and therefore cannot be used to infer treatment effects. Race and ethnic group were reported by the patients.

    Patients in the remdesivir group had a shorter time to recovery than patients in the placebo group (median, 11 days, as compared with 15 days. Rate ratio for recovery, 1.32. 95% confidence interval [CI], 1.12 to 1.55. P<0.001. 1059 patients (Figure 2 and Table 2).

    Among patients with a baseline ordinal score of 5 (421 patients), the rate ratio for recovery was 1.47 (95% CI, 1.17 to 1.84). Among patients with a baseline score of 4 (127 patients) and those with a baseline score of 6 (197 patients), the rate ratio estimates for recovery were 1.38 (95% CI, 0.94 to 2.03) and 1.20 (95% CI, 0.79 to 1.81), respectively. For those receiving mechanical ventilation or ECMO at enrollment (baseline ordinal scores of 7. 272 patients), the rate ratio for recovery was 0.95 (95% CI, 0.64 to 1.42). A test of interaction of treatment with baseline score on the ordinal scale was not significant.

    An analysis adjusting for baseline ordinal score as a stratification variable was conducted to evaluate the overall effect (of the percentage of patients in each ordinal score category at baseline) on the primary outcome. This adjusted analysis produced a similar treatment-effect estimate (rate ratio for recovery, 1.31. 95% CI, 1.12 to 1.54. 1017 patients). Table S2 in the Supplementary Appendix shows results according to the baseline severity stratum of mild-to-moderate as compared with severe.

    Patients who underwent randomization during the first 10 days after the onset of symptoms had a rate ratio for recovery of 1.28 (95% CI, 1.05 to 1.57. 664 patients), whereas patients who underwent randomization more than 10 days after the onset of symptoms had a rate ratio for recovery of 1.38 (95% CI, 1.05 to 1.81. 380 patients) (Figure 3). Key Secondary Outcome The odds of improvement in the ordinal scale score were higher in the remdesivir group, as determined by a proportional odds model at the day 15 visit, than in the placebo group (odds ratio for improvement, 1.50. 95% CI, 1.18 to 1.91.

    P=0.001. 844 patients) (Table 2 and Fig. S5). Mortality was numerically lower in the remdesivir group than in the placebo group, but the difference was not significant (hazard ratio for death, 0.70. 95% CI, 0.47 to 1.04.

    1059 patients). The Kaplan–Meier estimates of mortality by 14 days were 7.1% and 11.9% in the remdesivir and placebo groups, respectively (Table 2). The Kaplan–Meier estimates of mortality by 28 days are not reported in this preliminary analysis, given the large number of patients that had yet to complete day 29 visits. An analysis with adjustment for baseline ordinal score as a stratification variable showed a hazard ratio for death of 0.74 (95% CI, 0.50 to 1.10). Safety Outcomes Serious adverse events occurred in 114 patients (21.1%) in the remdesivir group and 141 patients (27.0%) in the placebo group (Table S3).

    4 events (2 in each group) were judged by site investigators to be related to remdesivir or placebo. There were 28 serious respiratory failure adverse events in the remdesivir group (5.2% of patients) and 42 in the placebo group (8.0% of patients). Acute respiratory failure, hypotension, viral pneumonia, and acute kidney injury were slightly more common among patients in the placebo group. No deaths were considered to be related to treatment assignment, as judged by the site investigators. Grade 3 or 4 adverse events occurred in 156 patients (28.8%) in the remdesivir group and in 172 in the placebo group (33.0%) (Table S4).

    The most common adverse events in the remdesivir group were anemia or decreased hemoglobin (43 events [7.9%], as compared with 47 [9.0%] in the placebo group). Acute kidney injury, decreased estimated glomerular filtration rate or creatinine clearance, or increased blood creatinine (40 events [7.4%], as compared with 38 [7.3%]). Pyrexia (27 events [5.0%], as compared with 17 [3.3%]). Hyperglycemia or increased blood glucose level (22 events [4.1%], as compared with 17 [3.3%]). And increased aminotransferase levels including alanine aminotransferase, aspartate aminotransferase, or both (22 events [4.1%], as compared with 31 [5.9%]).

    Otherwise, the incidence of adverse events was not found to be significantly different between the remdesivir group and the placebo group.Announced on May 15, Operation Warp Speed (OWS) — a partnership of the Department of Health and Human Services (HHS), the Department of Defense (DOD), and the private sector — aims to accelerate control of the Covid-19 pandemic by advancing development, manufacturing, and distribution of vaccines, therapeutics, and diagnostics. OWS is providing support to promising candidates and enabling the expeditious, parallel execution of the necessary steps toward approval or authorization of safe products by the Food and Drug Administration (FDA).The partnership grew out of an acknowledged need to fundamentally restructure the way the U.S. Government typically supports product development and vaccine distribution. The initiative was premised on setting a “stretch goal” — one that initially seemed impossible but that is becoming increasingly achievable.The concept of an integrated structure for Covid-19 countermeasure research and development across the U.S. Government was based on experience with Zika and the Zika Leadership Group led by the National Institutes of Health (NIH) and the assistant secretary for preparedness and response (ASPR).

    One of us (M.S.) serves as OWS chief advisor. We are drawing on expertise from the NIH, ASPR, the Centers for Disease Control and Prevention (CDC), the Biomedical Advanced Research and Development Authority (BARDA), and the DOD, including the Joint Program Executive Office for Chemical, Biological, Radiological and Nuclear Defense and the Defense Advanced Research Projects Agency. OWS has engaged experts in all critical aspects of medical countermeasure research, development, manufacturing, and distribution to work in close coordination.The initiative set ambitious objectives. To deliver tens of millions of doses of a SARS-CoV-2 vaccine — with demonstrated safety and efficacy, and approved or authorized by the FDA for use in the U.S. Population — beginning at the end of 2020 and to have as many as 300 million doses of such vaccines available and deployed by mid-2021.

    The pace and scope of such a vaccine effort are unprecedented. The 2014 West African Ebola virus epidemic spurred rapid vaccine development, but though preclinical data existed before the outbreak, a period of 12 months was required to progress from phase 1 first-in-human trials to phase 3 efficacy trials. OWS aims to compress this time frame even further. SARS-CoV-2 vaccine development began in January, phase 1 clinical studies in March, and the first phase 3 trials in July. Our objectives are based on advances in vaccine platform technology, improved understanding of safe and efficacious vaccine design, and similarities between the SARS-CoV-1 and SARS-CoV-2 disease mechanisms.OWS’s role is to enable, accelerate, harmonize, and advise the companies developing the selected vaccines.

    The companies will execute the clinical or process development and manufacturing plans, while OWS leverages the full capacity of the U.S. Government to ensure that no technical, logistic, or financial hurdles hinder vaccine development or deployment.OWS selected vaccine candidates on the basis of four criteria. We required candidates to have robust preclinical data or early-stage clinical trial data supporting their potential for clinical safety and efficacy. Candidates had to have the potential, with our acceleration support, to enter large phase 3 field efficacy trials this summer or fall (July to November 2020) and, assuming continued active transmission of the virus, to deliver efficacy outcomes by the end of 2020 or the first half of 2021. Candidates had to be based on vaccine-platform technologies permitting fast and effective manufacturing, and their developers had to demonstrate the industrial process scalability, yields, and consistency necessary to reliably produce more than 100 million doses by mid-2021.

    Finally, candidates had to use one of four vaccine-platform technologies that we believe are the most likely to yield a safe and effective vaccine against Covid-19. The mRNA platform, the replication-defective live-vector platform, the recombinant-subunit-adjuvanted protein platform, or the attenuated replicating live-vector platform.OWS’s strategy relies on a few key principles. First, we sought to build a diverse project portfolio that includes two vaccine candidates based on each of the four platform technologies. Such diversification mitigates the risk of failure due to safety, efficacy, industrial manufacturability, or scheduling factors and may permit selection of the best vaccine platform for each subpopulation at risk for contracting or transmitting Covid-19, including older adults, frontline and essential workers, young adults, and pediatric populations. In addition, advancing eight vaccines in parallel will increase the chances of delivering 300 million doses in the first half of 2021.Second, we must accelerate vaccine program development without compromising safety, efficacy, or product quality.

    Clinical development, process development, and manufacturing scale-up can be substantially accelerated by running all streams, fully resourced, in parallel. Doing so requires taking on substantial financial risk, as compared with the conventional sequential development approach. OWS will maximize the size of phase 3 trials (30,000 to 50,000 participants each) and optimize trial-site location by consulting daily epidemiologic and disease-forecasting models to ensure the fastest path to an efficacy readout. Such large trials also increase the safety data set for each candidate vaccine.With heavy up-front investment, companies can conduct clinical operations and site preparation for these phase 3 efficacy trials even as they file their Investigational New Drug application (IND) for their phase 1 studies, thereby ensuring immediate initiation of phase 3 when they get a green light from the FDA. To permit appropriate comparisons among the vaccine candidates and to optimize vaccine utilization after approval by the FDA, the phase 3 trial end points and assay readouts have been harmonized through a collaborative effort involving the National Institute of Allergy and Infectious Diseases (NIAID), the Coronavirus Prevention Network, OWS, and the sponsor companies.Finally, OWS is supporting the companies financially and technically to commence process development and scale up manufacturing while their vaccines are in preclinical or very early clinical stages.

    To ensure that industrial processes are set, running, and validated for FDA inspection when phase 3 trials end, OWS is also supporting facility building or refurbishing, equipment fitting, staff hiring and training, raw-material sourcing, technology transfer and validation, bulk product processing into vials, and acquisition of ample vials, syringes, and needles for each vaccine candidate. We aim to have stockpiled, at OWS’s expense, a few tens of millions of vaccine doses that could be swiftly deployed once FDA approval is obtained.This strategy aims to accelerate vaccine development without curtailing the critical steps required by sound science and regulatory standards. The FDA recently reissued guidance and standards that will be used to assess each vaccine for a Biologics License Application (BLA). Alternatively, the agency could decide to issue an Emergency Use Authorization to permit vaccine administration before all BLA procedures are completed.Of the eight vaccines in OWS’s portfolio, six have been announced and partnerships executed with the companies. Moderna and Pfizer/BioNTech (both mRNA), AstraZeneca and Janssen (both replication-defective live-vector), and Novavax and Sanofi/GSK (both recombinant-subunit-adjuvanted protein).

    These candidates cover three of the four platform technologies and are currently in clinical trials. The remaining two candidates will enter trials soon.Moderna developed its RNA vaccine in collaboration with the NIAID, began its phase 1 trial in March, recently published encouraging safety and immunogenicity data,1 and entered phase 3 on July 27. Pfizer and BioNTech’s RNA vaccine also produced encouraging phase 1 results2 and started its phase 3 trial on July 27. The ChAdOx replication-defective live-vector vaccine developed by AstraZeneca and Oxford University is in phase 3 trials in the United Kingdom, Brazil, and South Africa, and it should enter U.S. Phase 3 trials in August.3 The Janssen Ad26 Covid-19 replication-defective live-vector vaccine has demonstrated excellent protection in nonhuman primate models and began its U.S.

    Phase 1 trial on July 27. It should be in phase 3 trials in mid-September. Novavax completed a phase 1 trial of its recombinant-subunit-adjuvanted protein vaccine in Australia and should enter phase 3 trials in the United States by the end of September.4 Sanofi/GSK is completing preclinical development steps and plans to commence a phase 1 trial in early September and to be well into phase 3 by year’s end.5On the process-development front, the RNA vaccines are already being manufactured at scale. The other candidates are well advanced in their scale-up development, and manufacturing sites are being refurbished.While development and manufacturing proceed, the HHS–DOD partnership is laying the groundwork for vaccine distribution, subpopulation prioritization, financing, and logistic support. We are working with bioethicists and experts from the NIH, the CDC, BARDA, and the Centers for Medicare and Medicaid Services to address these critical issues.

    We will receive recommendations from the CDC Advisory Committee on Immunization Practices, and we are working to ensure that the most vulnerable and at-risk persons will receive vaccine doses once they are ready. Prioritization will also depend on the relative performance of each vaccine and its suitability for particular populations. Because some technologies have limited previous data on safety in humans, the long-term safety of these vaccines will be carefully assessed using pharmacovigilance surveillance strategies.No scientific enterprise could guarantee success by January 2021, but the strategic decisions and choices we’ve made, the support the government has provided, and the accomplishments to date make us optimistic that we will succeed in this unprecedented endeavor.Trial Design and Oversight We conducted a randomized, double-blind, placebo-controlled trial to evaluate postexposure prophylaxis with hydroxychloroquine after exposure to Covid-19.12 We randomly assigned participants in a 1:1 ratio to receive either hydroxychloroquine or placebo. Participants had known exposure (by participant report) to a person with laboratory-confirmed Covid-19, whether as a household contact, a health care worker, or a person with other occupational exposures. Trial enrollment began on March 17, 2020, with an eligibility threshold to enroll within 3 days after exposure.

    The objective was to intervene before the median incubation period of 5 to 6 days. Because of limited access to prompt testing, health care workers could initially be enrolled on the basis of presumptive high-risk exposure to patients with pending tests. However, on March 23, eligibility was changed to exposure to a person with a positive polymerase-chain-reaction (PCR) assay for SARS-CoV-2, with the eligibility window extended to within 4 days after exposure. This trial was approved by the institutional review board at the University of Minnesota and conducted under a Food and Drug Administration Investigational New Drug application. In Canada, the trial was approved by Health Canada.

    Ethics approvals were obtained from the Research Institute of the McGill University Health Centre, the University of Manitoba, and the University of Alberta. Participants We included participants who had household or occupational exposure to a person with confirmed Covid-19 at a distance of less than 6 ft for more than 10 minutes while wearing neither a face mask nor an eye shield (high-risk exposure) or while wearing a face mask but no eye shield (moderate-risk exposure). Participants were excluded if they were younger than 18 years of age, were hospitalized, or met other exclusion criteria (see the Supplementary Appendix, available with the full text of this article at NEJM.org). Persons with symptoms of Covid-19 or with PCR-proven SARS-CoV-2 infection were excluded from this prevention trial but were separately enrolled in a companion clinical trial to treat early infection. Setting Recruitment was performed primarily with the use of social media outreach as well as traditional media platforms.

    Participants were enrolled nationwide in the United States and in the Canadian provinces of Quebec, Manitoba, and Alberta. Participants enrolled themselves through a secure Internet-based survey using the Research Electronic Data Capture (REDCap) system.13 After participants read the consent form, their comprehension of its contents was assessed. Participants provided a digitally captured signature to indicate informed consent. We sent follow-up e-mail surveys on days 1, 5, 10, and 14. A survey at 4 to 6 weeks asked about any follow-up testing, illness, or hospitalizations.

    Participants who did not respond to follow-up surveys received text messages, e-mails, telephone calls, or a combination of these to ascertain their outcomes. When these methods were unsuccessful, the emergency contact provided by the enrollee was contacted to determine the participant’s illness and vital status. When all communication methods were exhausted, Internet searches for obituaries were performed to ascertain vital status. Interventions Randomization occurred at research pharmacies in Minneapolis and Montreal. The trial statisticians generated a permuted-block randomization sequence using variably sized blocks of 2, 4, or 8, with stratification according to country.

    A research pharmacist sequentially assigned participants. The assignments were concealed from investigators and participants. Only pharmacies had access to the randomization sequence. Hydroxychloroquine sulfate or placebo was dispensed and shipped overnight to participants by commercial courier. The dosing regimen for hydroxychloroquine was 800 mg (4 tablets) once, then 600 mg (3 tablets) 6 to 8 hours later, then 600 mg (3 tablets) daily for 4 more days for a total course of 5 days (19 tablets total).

    If participants had gastrointestinal upset, they were advised to divide the daily dose into two or three doses. We chose this hydroxychloroquine dosing regimen on the basis of pharmacokinetic simulations to achieve plasma concentrations above the SARS-CoV-2 in vitro half maximal effective concentration for 14 days.14 Placebo folate tablets, which were similar in appearance to the hydroxychloroquine tablets, were prescribed as an identical regimen for the control group. Rising Pharmaceuticals provided a donation of hydroxychloroquine, and some hydroxychloroquine was purchased. Outcomes The primary outcome was prespecified as symptomatic illness confirmed by a positive molecular assay or, if testing was unavailable, Covid-19–related symptoms. We assumed that health care workers would have access to Covid-19 testing if symptomatic.

    However, access to testing was limited throughout the trial period. Covid-19–related symptoms were based on U.S. Council for State and Territorial Epidemiologists criteria for confirmed cases (positivity for SARS-Cov-2 on PCR assay), probable cases (the presence of cough, shortness of breath, or difficulty breathing, or the presence of two or more symptoms of fever, chills, rigors, myalgia, headache, sore throat, and new olfactory and taste disorders), and possible cases (the presence of one or more compatible symptoms, which could include diarrhea).15 All the participants had epidemiologic linkage,15 per trial eligibility criteria. Four infectious disease physicians who were unaware of the trial-group assignments reviewed symptomatic participants to generate a consensus with respect to whether their condition met the case definition.15 Secondary outcomes included the incidence of hospitalization for Covid-19 or death, the incidence of PCR-confirmed SARS-CoV-2 infection, the incidence of Covid-19 symptoms, the incidence of discontinuation of the trial intervention owing to any cause, and the severity of symptoms (if any) at days 5 and 14 according to a visual analogue scale (scores ranged from 0 [no symptoms] to 10 [severe symptoms]). Data on adverse events were also collected with directed questioning for common side effects along with open-ended free text.

    Outcome data were measured within 14 days after trial enrollment. Outcome data including PCR testing results, possible Covid-19–related symptoms, adherence to the trial intervention, side effects, and hospitalizations were all collected through participant report. Details of trial conduct are provided in the protocol and statistical analysis plan, available at NEJM.org. Sample Size We anticipated that illness compatible with Covid-19 would develop in 10% of close contacts exposed to Covid-19.9 Using Fisher’s exact method with a 50% relative effect size to reduce new symptomatic infections, a two-sided alpha of 0.05, and 90% power, we estimated that 621 persons would need to be enrolled in each group. With a pragmatic, Internet-based, self-referral recruitment strategy, we planned for a 20% incidence of attrition by increasing the sample size to 750 participants per group.

    We specified a priori that participants who were already symptomatic on day 1 before receiving hydroxychloroquine or placebo would be excluded from the prophylaxis trial and would instead be separately enrolled in the companion symptomatic treatment trial. Because the estimates for both incident symptomatic Covid-19 after an exposure and loss to follow-up were relatively unknown in early March 2020,9 the protocol prespecified a sample-size reestimation at the second interim analysis. This reestimation, which used the incidence of new infections in the placebo group and the observed percentage of participants lost to follow-up, was aimed at maintaining the ability to detect an effect size of a 50% relative reduction in new symptomatic infections. Interim Analyses An independent data and safety monitoring board externally reviewed the data after 25% and 50% of the participants had completed 14 days of follow-up. Stopping guidelines were provided to the data and safety monitoring board with the use of a Lan–DeMets spending function analogue of the O’Brien–Fleming boundaries for the primary outcome.

    A conditional power analysis was performed at the second and third interim analysis with the option of early stopping for futility. At the second interim analysis on April 22, 2020, the sample size was reduced to 956 participants who could be evaluated with 90% power on the basis of the higher-than-expected event rate of infections in the control group. At the third interim analysis on May 6, the trial was halted on the basis of a conditional power of less than 1%, since it was deemed futile to continue. Statistical Analysis We assessed the incidence of Covid-19 disease by day 14 with Fisher’s exact test. Secondary outcomes with respect to percentage of patients were also compared with Fisher’s exact test.

    Among participants in whom incident illness compatible with Covid-19 developed, we summarized the symptom severity score at day 14 with the median and interquartile range and assessed the distributions with a Kruskal–Wallis test. We conducted all analyses with SAS software, version 9.4 (SAS Institute), according to the intention-to-treat principle, with two-sided type I error with an alpha of 0.05. For participants with missing outcome data, we conducted a sensitivity analysis with their outcomes excluded or included as an event. Subgroups that were specified a priori included type of contact (household vs. Health care), days from exposure to enrollment, age, and sex.Trial Design and Oversight The RECOVERY trial was designed to evaluate the effects of potential treatments in patients hospitalized with Covid-19 at 176 National Health Service organizations in the United Kingdom and was supported by the National Institute for Health Research Clinical Research Network.

    (Details regarding this trial are provided in the Supplementary Appendix, available with the full text of this article at NEJM.org.) The trial is being coordinated by the Nuffield Department of Population Health at the University of Oxford, the trial sponsor. Although the randomization of patients to receive dexamethasone, hydroxychloroquine, or lopinavir–ritonavir has now been stopped, the trial continues randomization to groups receiving azithromycin, tocilizumab, or convalescent plasma. Hospitalized patients were eligible for the trial if they had clinically suspected or laboratory-confirmed SARS-CoV-2 infection and no medical history that might, in the opinion of the attending clinician, put patients at substantial risk if they were to participate in the trial. Initially, recruitment was limited to patients who were at least 18 years of age, but the age limit was removed starting on May 9, 2020. Pregnant or breast-feeding women were eligible.

    Written informed consent was obtained from all the patients or from a legal representative if they were unable to provide consent. The trial was conducted in accordance with the principles of the Good Clinical Practice guidelines of the International Conference on Harmonisation and was approved by the U.K. Medicines and Healthcare Products Regulatory Agency and the Cambridge East Research Ethics Committee. The protocol with its statistical analysis plan is available at NEJM.org and on the trial website at www.recoverytrial.net. The initial version of the manuscript was drafted by the first and last authors, developed by the writing committee, and approved by all members of the trial steering committee.

    The funders had no role in the analysis of the data, in the preparation or approval of the manuscript, or in the decision to submit the manuscript for publication. The first and last members of the writing committee vouch for the completeness and accuracy of the data and for the fidelity of the trial to the protocol and statistical analysis plan. Randomization We collected baseline data using a Web-based case-report form that included demographic data, the level of respiratory support, major coexisting illnesses, suitability of the trial treatment for a particular patient, and treatment availability at the trial site. Randomization was performed with the use of a Web-based system with concealment of the trial-group assignment. Eligible and consenting patients were assigned in a 2:1 ratio to receive either the usual standard of care alone or the usual standard of care plus oral or intravenous dexamethasone (at a dose of 6 mg once daily) for up to 10 days (or until hospital discharge if sooner) or to receive one of the other suitable and available treatments that were being evaluated in the trial.

    For some patients, dexamethasone was unavailable at the hospital at the time of enrollment or was considered by the managing physician to be either definitely indicated or definitely contraindicated. These patients were excluded from entry in the randomized comparison between dexamethasone and usual care and hence were not included in this report. The randomly assigned treatment was prescribed by the treating clinician. Patients and local members of the trial staff were aware of the assigned treatments. Procedures A single online follow-up form was to be completed when the patients were discharged or had died or at 28 days after randomization, whichever occurred first.

    Information was recorded regarding the patients’ adherence to the assigned treatment, receipt of other trial treatments, duration of admission, receipt of respiratory support (with duration and type), receipt of renal support, and vital status (including the cause of death). In addition, we obtained routine health care and registry data, including information on vital status (with date and cause of death), discharge from the hospital, and respiratory and renal support therapy. Outcome Measures The primary outcome was all-cause mortality within 28 days after randomization. Further analyses were specified at 6 months. Secondary outcomes were the time until discharge from the hospital and, among patients not receiving invasive mechanical ventilation at the time of randomization, subsequent receipt of invasive mechanical ventilation (including extracorporeal membrane oxygenation) or death.

    Other prespecified clinical outcomes included cause-specific mortality, receipt of renal hemodialysis or hemofiltration, major cardiac arrhythmia (recorded in a subgroup), and receipt and duration of ventilation. Statistical Analysis As stated in the protocol, appropriate sample sizes could not be estimated when the trial was being planned at the start of the Covid-19 pandemic. As the trial progressed, the trial steering committee, whose members were unaware of the results of the trial comparisons, determined that if 28-day mortality was 20%, then the enrollment of at least 2000 patients in the dexamethasone group and 4000 in the usual care group would provide a power of at least 90% at a two-sided P value of 0.01 to detect a clinically relevant proportional reduction of 20% (an absolute difference of 4 percentage points) between the two groups. Consequently, on June 8, 2020, the steering committee closed recruitment to the dexamethasone group, since enrollment had exceeded 2000 patients. For the primary outcome of 28-day mortality, the hazard ratio from Cox regression was used to estimate the mortality rate ratio.

    Among the few patients (0.1%) who had not been followed for 28 days by the time of the data cutoff on July 6, 2020, data were censored either on that date or on day 29 if the patient had already been discharged. That is, in the absence of any information to the contrary, these patients were assumed to have survived for 28 days. Kaplan–Meier survival curves were constructed to show cumulative mortality over the 28-day period. Cox regression was used to analyze the secondary outcome of hospital discharge within 28 days, with censoring of data on day 29 for patients who had died during hospitalization. For the prespecified composite secondary outcome of invasive mechanical ventilation or death within 28 days (among patients who were not receiving invasive mechanical ventilation at randomization), the precise date of invasive mechanical ventilation was not available, so a log-binomial regression model was used to estimate the risk ratio.

    Table 1. Table 1. Characteristics of the Patients at Baseline, According to Treatment Assignment and Level of Respiratory Support. Through the play of chance in the unstratified randomization, the mean age was 1.1 years older among patients in the dexamethasone group than among those in the usual care group (Table 1). To account for this imbalance in an important prognostic factor, estimates of rate ratios were adjusted for the baseline age in three categories (<70 years, 70 to 79 years, and ≥80 years).

    This adjustment was not specified in the first version of the statistical analysis plan but was added once the imbalance in age became apparent. Results without age adjustment (corresponding to the first version of the analysis plan) are provided in the Supplementary Appendix. Prespecified analyses of the primary outcome were performed in five subgroups, as defined by characteristics at randomization. Age, sex, level of respiratory support, days since symptom onset, and predicted 28-day mortality risk. (One further prespecified subgroup analysis regarding race will be conducted once the data collection has been completed.) In prespecified subgroups, we estimated rate ratios (or risk ratios in some analyses) and their confidence intervals using regression models that included an interaction term between the treatment assignment and the subgroup of interest.

    Chi-square tests for linear trend across the subgroup-specific log estimates were then performed in accordance with the prespecified plan. All P values are two-sided and are shown without adjustment for multiple testing. All analyses were performed according to the intention-to-treat principle. The full database is held by the trial team, which collected the data from trial sites and performed the analyses at the Nuffield Department of Population Health, University of Oxford..

    Trial Population Table online pharmacy trazodone 1. Table 1. Characteristics of the Participants in the online pharmacy trazodone mRNA-1273 Trial at Enrollment.

    The 45 enrolled participants received their first vaccination between March 16 and April 14, 2020 (Fig. S1). Three participants did not receive the second vaccination, including one in the 25-μg group who had urticaria on both legs, with onset 5 days after the first vaccination, and two (one in the 25-μg group and one in the 250-μg group) who missed the second vaccination window owing to isolation for suspected Covid-19 while the test results, ultimately negative, were pending.

    All continued to attend scheduled trial visits. The demographic characteristics of participants at enrollment are provided in Table 1. Vaccine Safety No serious adverse events were noted, and no prespecified trial halting rules were met.

    As noted above, one participant in the 25-μg group was withdrawn because of an unsolicited adverse event, transient urticaria, judged to be related to the first vaccination. Figure 1. Figure 1.

    Systemic and Local Adverse Events. The severity of solicited adverse events was graded as mild, moderate, or severe (see Table S1).After the first vaccination, solicited systemic adverse events were reported by 5 participants (33%) in the 25-μg group, 10 (67%) in the 100-μg group, and 8 (53%) in the 250-μg group. All were mild or moderate in severity (Figure 1 and Table S2).

    Solicited systemic adverse events were more common after the second vaccination and occurred in 7 of 13 participants (54%) in the 25-μg group, all 15 in the 100-μg group, and all 14 in the 250-μg group, with 3 of those participants (21%) reporting one or more severe events. None of the participants had fever after the first vaccination. After the second vaccination, no participants in the 25-μg group, 6 (40%) in the 100-μg group, and 8 (57%) in the 250-μg group reported fever.

    One of the events (maximum temperature, 39.6°C) in the 250-μg group was graded severe. (Additional details regarding adverse events for that participant are provided in the Supplementary Appendix.) Local adverse events, when present, were nearly all mild or moderate, and pain at the injection site was common. Across both vaccinations, solicited systemic and local adverse events that occurred in more than half the participants included fatigue, chills, headache, myalgia, and pain at the injection site.

    Evaluation of safety clinical laboratory values of grade 2 or higher and unsolicited adverse events revealed no patterns of concern (Supplementary Appendix and Table S3). SARS-CoV-2 Binding Antibody Responses Table 2. Table 2.

    Geometric Mean Humoral Immunogenicity Assay Responses to mRNA-1273 in Participants and in Convalescent Serum Specimens. Figure 2. Figure 2.

    SARS-CoV-2 Antibody and Neutralization Responses. Shown are geometric mean reciprocal end-point enzyme-linked immunosorbent assay (ELISA) IgG titers to S-2P (Panel A) and receptor-binding domain (Panel B), PsVNA ID50 responses (Panel C), and live virus PRNT80 responses (Panel D). In Panel A and Panel B, boxes and horizontal bars denote interquartile range (IQR) and median area under the curve (AUC), respectively.

    Whisker endpoints are equal to the maximum and minimum values below or above the median ±1.5 times the IQR. The convalescent serum panel includes specimens from 41 participants. Red dots indicate the 3 specimens that were also tested in the PRNT assay.

    The other 38 specimens were used to calculate summary statistics for the box plot in the convalescent serum panel. In Panel C, boxes and horizontal bars denote IQR and median ID50, respectively. Whisker end points are equal to the maximum and minimum values below or above the median ±1.5 times the IQR.

    In the convalescent serum panel, red dots indicate the 3 specimens that were also tested in the PRNT assay. The other 38 specimens were used to calculate summary statistics for the box plot in the convalescent panel. In Panel D, boxes and horizontal bars denote IQR and median PRNT80, respectively.

    Whisker end points are equal to the maximum and minimum values below or above the median ±1.5 times the IQR. The three convalescent serum specimens were also tested in ELISA and PsVNA assays. Because of the time-intensive nature of the PRNT assay, for this preliminary report, PRNT results were available only for the 25-μg and 100-μg dose groups.Binding antibody IgG geometric mean titers (GMTs) to S-2P increased rapidly after the first vaccination, with seroconversion in all participants by day 15 (Table 2 and Figure 2A).

    Dose-dependent responses to the first and second vaccinations were evident. Receptor-binding domain–specific antibody responses were similar in pattern and magnitude (Figure 2B). For both assays, the median magnitude of antibody responses after the first vaccination in the 100-μg and 250-μg dose groups was similar to the median magnitude in convalescent serum specimens, and in all dose groups the median magnitude after the second vaccination was in the upper quartile of values in the convalescent serum specimens.

    The S-2P ELISA GMTs at day 57 (299,751 [95% confidence interval {CI}, 206,071 to 436,020] in the 25-μg group, 782,719 [95% CI, 619,310 to 989,244] in the 100-μg group, and 1,192,154 [95% CI, 924,878 to 1,536,669] in the 250-μg group) exceeded that in the convalescent serum specimens (142,140 [95% CI, 81,543 to 247,768]). SARS-CoV-2 Neutralization Responses No participant had detectable PsVNA responses before vaccination. After the first vaccination, PsVNA responses were detected in less than half the participants, and a dose effect was seen (50% inhibitory dilution [ID50].

    Figure 2C, Fig. S8, and Table 2. 80% inhibitory dilution [ID80].

    Fig. S2 and Table S6). However, after the second vaccination, PsVNA responses were identified in serum samples from all participants.

    The lowest responses were in the 25-μg dose group, with a geometric mean ID50 of 112.3 (95% CI, 71.2 to 177.1) at day 43. The higher responses in the 100-μg and 250-μg groups were similar in magnitude (geometric mean ID50, 343.8 [95% CI, 261.2 to 452.7] and 332.2 [95% CI, 266.3 to 414.5], respectively, at day 43). These responses were similar to values in the upper half of the distribution of values for convalescent serum specimens.

    Before vaccination, no participant had detectable 80% live-virus neutralization at the highest serum concentration tested (1:8 dilution) in the PRNT assay. At day 43, wild-type virus–neutralizing activity capable of reducing SARS-CoV-2 infectivity by 80% or more (PRNT80) was detected in all participants, with geometric mean PRNT80 responses of 339.7 (95% CI, 184.0 to 627.1) in the 25-μg group and 654.3 (95% CI, 460.1 to 930.5) in the 100-μg group (Figure 2D). Neutralizing PRNT80 average responses were generally at or above the values of the three convalescent serum specimens tested in this assay.

    Good agreement was noted within and between the values from binding assays for S-2P and receptor-binding domain and neutralizing activity measured by PsVNA and PRNT (Figs. S3 through S7), which provides orthogonal support for each assay in characterizing the humoral response induced by mRNA-1273. SARS-CoV-2 T-Cell Responses The 25-μg and 100-μg doses elicited CD4 T-cell responses (Figs.

    S9 and S10) that on stimulation by S-specific peptide pools were strongly biased toward expression of Th1 cytokines (tumor necrosis factor α >. Interleukin 2 >. Interferon γ), with minimal type 2 helper T-cell (Th2) cytokine expression (interleukin 4 and interleukin 13).

    CD8 T-cell responses to S-2P were detected at low levels after the second vaccination in the 100-μg dose group (Fig. S11).Patients Figure 1. Figure 1.

    Enrollment and Randomization. Of the 1107 patients who were assessed for eligibility, 1063 underwent randomization. 541 were assigned to the remdesivir group and 522 to the placebo group (Figure 1).

    Of those assigned to receive remdesivir, 531 patients (98.2%) received the treatment as assigned. Forty-nine patients had remdesivir treatment discontinued before day 10 because of an adverse event or a serious adverse event other than death (36 patients) or because the patient withdrew consent (13). Of those assigned to receive placebo, 518 patients (99.2%) received placebo as assigned.

    Fifty-three patients discontinued placebo before day 10 because of an adverse event or a serious adverse event other than death (36 patients), because the patient withdrew consent (15), or because the patient was found to be ineligible for trial enrollment (2). As of April 28, 2020, a total of 391 patients in the remdesivir group and 340 in the placebo group had completed the trial through day 29, recovered, or died. Eight patients who received remdesivir and 9 who received placebo terminated their participation in the trial before day 29.

    There were 132 patients in the remdesivir group and 169 in the placebo group who had not recovered and had not completed the day 29 follow-up visit. The analysis population included 1059 patients for whom we have at least some postbaseline data available (538 in the remdesivir group and 521 in the placebo group). Four of the 1063 patients were not included in the primary analysis because no postbaseline data were available at the time of the database freeze.

    Table 1. Table 1. Demographic and Clinical Characteristics at Baseline.

    The mean age of patients was 58.9 years, and 64.3% were male (Table 1). On the basis of the evolving epidemiology of Covid-19 during the trial, 79.8% of patients were enrolled at sites in North America, 15.3% in Europe, and 4.9% in Asia (Table S1). Overall, 53.2% of the patients were white, 20.6% were black, 12.6% were Asian, and 13.6% were designated as other or not reported.

    249 (23.4%) were Hispanic or Latino. Most patients had either one (27.0%) or two or more (52.1%) of the prespecified coexisting conditions at enrollment, most commonly hypertension (49.6%), obesity (37.0%), and type 2 diabetes mellitus (29.7%). The median number of days between symptom onset and randomization was 9 (interquartile range, 6 to 12).

    Nine hundred forty-three (88.7%) patients had severe disease at enrollment as defined in the Supplementary Appendix. 272 (25.6%) patients met category 7 criteria on the ordinal scale, 197 (18.5%) category 6, 421 (39.6%) category 5, and 127 (11.9%) category 4. There were 46 (4.3%) patients who had missing ordinal scale data at enrollment.

    No substantial imbalances in baseline characteristics were observed between the remdesivir group and the placebo group. Primary Outcome Figure 2. Figure 2.

    Kaplan–Meier Estimates of Cumulative Recoveries. Cumulative recovery estimates are shown in the overall population (Panel A), in patients with a baseline score of 4 on the ordinal scale (not receiving oxygen. Panel B), in those with a baseline score of 5 (receiving oxygen.

    Panel C), in those with a baseline score of 6 (receiving high-flow oxygen or noninvasive mechanical ventilation. Panel D), and in those with a baseline score of 7 (receiving mechanical ventilation or ECMO. Panel E).

    Table 2. Table 2. Outcomes Overall and According to Score on the Ordinal Scale in the Intention-to-Treat Population.

    Figure 3. Figure 3. Time to Recovery According to Subgroup.

    The widths of the confidence intervals have not been adjusted for multiplicity and therefore cannot be used to infer treatment effects. Race and ethnic group were reported by the patients. Patients in the remdesivir group had a shorter time to recovery than patients in the placebo group (median, 11 days, as compared with 15 days.

    Rate ratio for recovery, 1.32. 95% confidence interval [CI], 1.12 to 1.55. P<0.001.

    1059 patients (Figure 2 and Table 2). Among patients with a baseline ordinal score of 5 (421 patients), the rate ratio for recovery was 1.47 (95% CI, 1.17 to 1.84). Among patients with a baseline score of 4 (127 patients) and those with a baseline score of 6 (197 patients), the rate ratio estimates for recovery were 1.38 (95% CI, 0.94 to 2.03) and 1.20 (95% CI, 0.79 to 1.81), respectively.

    For those receiving mechanical ventilation or ECMO at enrollment (baseline ordinal scores of 7. 272 patients), the rate ratio for recovery was 0.95 (95% CI, 0.64 to 1.42). A test of interaction of treatment with baseline score on the ordinal scale was not significant.

    An analysis adjusting for baseline ordinal score as a stratification variable was conducted to evaluate the overall effect (of the percentage of patients in each ordinal score category at baseline) on the primary outcome. This adjusted analysis produced a similar treatment-effect estimate (rate ratio for recovery, 1.31. 95% CI, 1.12 to 1.54.

    1017 patients). Table S2 in the Supplementary Appendix shows results according to the baseline severity stratum of mild-to-moderate as compared with severe. Patients who underwent randomization during the first 10 days after the onset of symptoms had a rate ratio for recovery of 1.28 (95% CI, 1.05 to 1.57.

    664 patients), whereas patients who underwent randomization more than 10 days after the onset of symptoms had a rate ratio for recovery of 1.38 (95% CI, 1.05 to 1.81. 380 patients) (Figure 3). Key Secondary Outcome The odds of improvement in the ordinal scale score were higher in the remdesivir group, as determined by a proportional odds model at the day 15 visit, than in the placebo group (odds ratio for improvement, 1.50.

    95% CI, 1.18 to 1.91. P=0.001. 844 patients) (Table 2 and Fig.

    S5). Mortality was numerically lower in the remdesivir group than in the placebo group, but the difference was not significant (hazard ratio for death, 0.70. 95% CI, 0.47 to 1.04.

    1059 patients). The Kaplan–Meier estimates of mortality by 14 days were 7.1% and 11.9% in the remdesivir and placebo groups, respectively (Table 2). The Kaplan–Meier estimates of mortality by 28 days are not reported in this preliminary analysis, given the large number of patients that had yet to complete day 29 visits.

    An analysis with adjustment for baseline ordinal score as a stratification variable showed a hazard ratio for death of 0.74 (95% CI, 0.50 to 1.10). Safety Outcomes Serious adverse events occurred in 114 patients (21.1%) in the remdesivir group and 141 patients (27.0%) in the placebo group (Table S3). 4 events (2 in each group) were judged by site investigators to be related to remdesivir or placebo.

    There were 28 serious respiratory failure adverse events in the remdesivir group (5.2% of patients) and 42 in the placebo group (8.0% of patients). Acute respiratory failure, hypotension, viral pneumonia, and acute kidney injury were slightly more common among patients in the placebo group. No deaths were considered to be related to treatment assignment, as judged by the site investigators.

    Grade 3 or 4 adverse events occurred in 156 patients (28.8%) in the remdesivir group and in 172 in the placebo group (33.0%) (Table S4). The most common adverse events in the remdesivir group were anemia or decreased hemoglobin (43 events [7.9%], as compared with 47 [9.0%] in the placebo group). Acute kidney injury, decreased estimated glomerular filtration rate or creatinine clearance, or increased blood creatinine (40 events [7.4%], as compared with 38 [7.3%]).

    Pyrexia (27 events [5.0%], as compared with 17 [3.3%]). Hyperglycemia or increased blood glucose level (22 events [4.1%], as compared with 17 [3.3%]). And increased aminotransferase levels including alanine aminotransferase, aspartate aminotransferase, or both (22 events [4.1%], as compared with 31 [5.9%]).

    Otherwise, the incidence of adverse events was not found to be significantly different between the remdesivir group and the placebo group.Announced on May 15, Operation Warp Speed (OWS) — a partnership of the Department of Health and Human Services (HHS), the Department of Defense (DOD), and the private sector — aims to accelerate control of the Covid-19 pandemic by advancing development, manufacturing, and distribution of vaccines, therapeutics, and diagnostics. OWS is providing support to promising candidates and enabling the expeditious, parallel execution of the necessary steps toward approval or authorization of safe products by the Food and Drug Administration (FDA).The partnership grew out of an acknowledged need to fundamentally restructure the way the U.S. Government typically supports product development and vaccine distribution.

    The initiative was premised on setting a “stretch goal” — one that initially seemed impossible but that is becoming increasingly achievable.The concept of an integrated structure for Covid-19 countermeasure research and development across the U.S. Government was based on experience with Zika and the Zika Leadership Group led by the National Institutes of Health (NIH) and the assistant secretary for preparedness and response (ASPR). One of us (M.S.) serves as OWS chief advisor.

    We are drawing on expertise from the NIH, ASPR, the Centers for Disease Control and Prevention (CDC), the Biomedical Advanced Research and Development Authority (BARDA), and the DOD, including the Joint Program Executive Office for Chemical, Biological, Radiological and Nuclear Defense and the Defense Advanced Research Projects Agency. OWS has engaged experts in all critical aspects of medical countermeasure research, development, manufacturing, and distribution to work in close coordination.The initiative set ambitious objectives. To deliver tens of millions of doses of a SARS-CoV-2 vaccine — with demonstrated safety and efficacy, and approved or authorized by the FDA for use in the U.S.

    Population — beginning at the end of 2020 and to have as many as 300 million doses of such vaccines available and deployed by mid-2021. The pace and scope of such a vaccine effort are unprecedented. The 2014 West African Ebola virus epidemic spurred rapid vaccine development, but though preclinical data existed before the outbreak, a period of 12 months was required to progress from phase 1 first-in-human trials to phase 3 efficacy trials.

    OWS aims to compress this time frame even further. SARS-CoV-2 vaccine development began in January, phase 1 clinical studies in March, and the first phase 3 trials in July. Our objectives are based on advances in vaccine platform technology, improved understanding of safe and efficacious vaccine design, and similarities between the SARS-CoV-1 and SARS-CoV-2 disease mechanisms.OWS’s role is to enable, accelerate, harmonize, and advise the companies developing the selected vaccines.

    The companies will execute the clinical or process development and manufacturing plans, while OWS leverages the full capacity of the U.S. Government to ensure that no technical, logistic, or financial hurdles hinder vaccine development or deployment.OWS selected vaccine candidates on the basis of four criteria. We required candidates to have robust preclinical data or early-stage clinical trial data supporting their potential for clinical safety and efficacy.

    Candidates had to have the potential, with our acceleration support, to enter large phase 3 field efficacy trials this summer or fall (July to November 2020) and, assuming continued active transmission of the virus, to deliver efficacy outcomes by the end of 2020 or the first half of 2021. Candidates had to be based on vaccine-platform technologies permitting fast and effective manufacturing, and their developers had to demonstrate the industrial process scalability, yields, and consistency necessary to reliably produce more than 100 million doses by mid-2021. Finally, candidates had to use one of four vaccine-platform technologies that we believe are the most likely to yield a safe and effective vaccine against Covid-19.

    The mRNA platform, the replication-defective live-vector platform, the recombinant-subunit-adjuvanted protein platform, or the attenuated replicating live-vector platform.OWS’s strategy relies on a few key principles. First, we sought to build a diverse project portfolio that includes two vaccine candidates based on each of the four platform technologies. Such diversification mitigates the risk of failure due to safety, efficacy, industrial manufacturability, or scheduling factors and may permit selection of the best vaccine platform for each subpopulation at risk for contracting or transmitting Covid-19, including older adults, frontline and essential workers, young adults, and pediatric populations.

    In addition, advancing eight vaccines in parallel will increase the chances of delivering 300 million doses in the first half of 2021.Second, we must accelerate vaccine program development without compromising safety, efficacy, or product quality. Clinical development, process development, and manufacturing scale-up can be substantially accelerated by running all streams, fully resourced, in parallel. Doing so requires taking on substantial financial risk, as compared with the conventional sequential development approach.

    OWS will maximize the size of phase 3 trials (30,000 to 50,000 participants each) and optimize trial-site location by consulting daily epidemiologic and disease-forecasting models to ensure the fastest path to an efficacy readout. Such large trials also increase the safety data set for each candidate vaccine.With heavy up-front investment, companies can conduct clinical operations and site preparation for these phase 3 efficacy trials even as they file their Investigational New Drug application (IND) for their phase 1 studies, thereby ensuring immediate initiation of phase 3 when they get a green light from the FDA. To permit appropriate comparisons among the vaccine candidates and to optimize vaccine utilization after approval by the FDA, the phase 3 trial end points and assay readouts have been harmonized through a collaborative effort involving the National Institute of Allergy and Infectious Diseases (NIAID), the Coronavirus Prevention Network, OWS, and the sponsor companies.Finally, OWS is supporting the companies financially and technically to commence process development and scale up manufacturing while their vaccines are in preclinical or very early clinical stages.

    To ensure that industrial processes are set, running, and validated for FDA inspection when phase 3 trials end, OWS is also supporting facility building or refurbishing, equipment fitting, staff hiring and training, raw-material sourcing, technology transfer and validation, bulk product processing into vials, and acquisition of ample vials, syringes, and needles for each vaccine candidate. We aim to have stockpiled, at OWS’s expense, a few tens of millions of vaccine doses that could be swiftly deployed once FDA approval is obtained.This strategy aims to accelerate vaccine development without curtailing the critical steps required by sound science and regulatory standards. The FDA recently reissued guidance and standards that will be used to assess each vaccine for a Biologics License Application (BLA).

    Alternatively, the agency could decide to issue an Emergency Use Authorization to permit vaccine administration before all BLA procedures are completed.Of the eight vaccines in OWS’s portfolio, six have been announced and partnerships executed with the companies. Moderna and Pfizer/BioNTech (both mRNA), AstraZeneca and Janssen (both replication-defective live-vector), and Novavax and Sanofi/GSK (both recombinant-subunit-adjuvanted protein). These candidates cover three of the four platform technologies and are currently in clinical trials.

    The remaining two candidates will enter trials soon.Moderna developed its RNA vaccine in collaboration with the NIAID, began its phase 1 trial in March, recently published encouraging safety and immunogenicity data,1 and entered phase 3 on July 27. Pfizer and BioNTech’s RNA vaccine also produced encouraging phase 1 results2 and started its phase 3 trial on July 27. The ChAdOx replication-defective live-vector vaccine developed by AstraZeneca and Oxford University is in phase 3 trials in the United Kingdom, Brazil, and South Africa, and it should enter U.S.

    Phase 3 trials in August.3 The Janssen Ad26 Covid-19 replication-defective live-vector vaccine has demonstrated excellent protection in nonhuman primate models and began its U.S. Phase 1 trial on July 27. It should be in phase 3 trials in mid-September.

    Novavax completed a phase 1 trial of its recombinant-subunit-adjuvanted protein vaccine in Australia and should enter phase 3 trials in the United States by the end of September.4 Sanofi/GSK is completing preclinical development steps and plans to commence a phase 1 trial in early September and to be well into phase 3 by year’s end.5On the process-development front, the RNA vaccines are already being manufactured at scale. The other candidates are well advanced in their scale-up development, and manufacturing sites are being refurbished.While development and manufacturing proceed, the HHS–DOD partnership is laying the groundwork for vaccine distribution, subpopulation prioritization, financing, and logistic support. We are working with bioethicists and experts from the NIH, the CDC, BARDA, and the Centers for Medicare and Medicaid Services to address these critical issues.

    We will receive recommendations from the CDC Advisory Committee on Immunization Practices, and we are working to ensure that the most vulnerable and at-risk persons will receive vaccine doses once they are ready. Prioritization will also depend on the relative performance of each vaccine and its suitability for particular populations. Because some technologies have limited previous data on safety in humans, the long-term safety of these vaccines will be carefully assessed using pharmacovigilance surveillance strategies.No scientific enterprise could guarantee success by January 2021, but the strategic decisions and choices we’ve made, the support the government has provided, and the accomplishments to date make us optimistic that we will succeed in this unprecedented endeavor.Trial Design and Oversight We conducted a randomized, double-blind, placebo-controlled trial to evaluate postexposure prophylaxis with hydroxychloroquine after exposure to Covid-19.12 We randomly assigned participants in a 1:1 ratio to receive either hydroxychloroquine or placebo.

    Participants had known exposure (by participant report) to a person with laboratory-confirmed Covid-19, whether as a household contact, a health care worker, or a person with other occupational exposures. Trial enrollment began on March 17, 2020, with an eligibility threshold to enroll within 3 days after exposure. The objective was to intervene before the median incubation period of 5 to 6 days.

    Because of limited access to prompt testing, health care workers could initially be enrolled on the basis of presumptive high-risk exposure to patients with pending tests. However, on March 23, eligibility was changed to exposure to a person with a positive polymerase-chain-reaction (PCR) assay for SARS-CoV-2, with the eligibility window extended to within 4 days after exposure. This trial was approved by the institutional review board at the University of Minnesota and conducted under a Food and Drug Administration Investigational New Drug application.

    In Canada, the trial was approved by Health Canada. Ethics approvals were obtained from the Research Institute of the McGill University Health Centre, the University of Manitoba, and the University of Alberta. Participants We included participants who had household or occupational exposure to a person with confirmed Covid-19 at a distance of less than 6 ft for more than 10 minutes while wearing neither a face mask nor an eye shield (high-risk exposure) or while wearing a face mask but no eye shield (moderate-risk exposure).

    Participants were excluded if they were younger than 18 years of age, were hospitalized, or met other exclusion criteria (see the Supplementary Appendix, available with the full text of this article at NEJM.org). Persons with symptoms of Covid-19 or with PCR-proven SARS-CoV-2 infection were excluded from this prevention trial but were separately enrolled in a companion clinical trial to treat early infection. Setting Recruitment was performed primarily with the use of social media outreach as well as traditional media platforms.

    Participants were enrolled nationwide in the United States and in the Canadian provinces of Quebec, Manitoba, and Alberta. Participants enrolled themselves through a secure Internet-based survey using the Research Electronic Data Capture (REDCap) system.13 After participants read the consent form, their comprehension of its contents was assessed. Participants provided a digitally captured signature to indicate informed consent.

    We sent follow-up e-mail surveys on days 1, 5, 10, and 14. A survey at 4 to 6 weeks asked about any follow-up testing, illness, or hospitalizations. Participants who did not respond to follow-up surveys received text messages, e-mails, telephone calls, or a combination of these to ascertain their outcomes.

    When these methods were unsuccessful, the emergency contact provided by the enrollee was contacted to determine the participant’s illness and vital status. When all communication methods were exhausted, Internet searches for obituaries were performed to ascertain vital status. Interventions Randomization occurred at research pharmacies in Minneapolis and Montreal.

    The trial statisticians generated a permuted-block randomization sequence using variably sized blocks of 2, 4, or 8, with stratification according to country. A research pharmacist sequentially assigned participants. The assignments were concealed from investigators and participants.

    Only pharmacies had access to the randomization sequence. Hydroxychloroquine sulfate or placebo was dispensed and shipped overnight to participants by commercial courier. The dosing regimen for hydroxychloroquine was 800 mg (4 tablets) once, then 600 mg (3 tablets) 6 to 8 hours later, then 600 mg (3 tablets) daily for 4 more days for a total course of 5 days (19 tablets total).

    If participants had gastrointestinal upset, they were advised to divide the daily dose into two or three doses. We chose this hydroxychloroquine dosing regimen on the basis of pharmacokinetic simulations to achieve plasma concentrations above the SARS-CoV-2 in vitro half maximal effective concentration for 14 days.14 Placebo folate tablets, which were similar in appearance to the hydroxychloroquine tablets, were prescribed as an identical regimen for the control group. Rising Pharmaceuticals provided a donation of hydroxychloroquine, and some hydroxychloroquine was purchased.

    Outcomes The primary outcome was prespecified as symptomatic illness confirmed by a positive molecular assay or, if testing was unavailable, Covid-19–related symptoms. We assumed that health care workers would have access to Covid-19 testing if symptomatic. However, access to testing was limited throughout the trial period.

    Covid-19–related symptoms were based on U.S. Council for State and Territorial Epidemiologists criteria for confirmed cases (positivity for SARS-Cov-2 on PCR assay), probable cases (the presence of cough, shortness of breath, or difficulty breathing, or the presence of two or more symptoms of fever, chills, rigors, myalgia, headache, sore throat, and new olfactory and taste disorders), and possible cases (the presence of one or more compatible symptoms, which could include diarrhea).15 All the participants had epidemiologic linkage,15 per trial eligibility criteria. Four infectious disease physicians who were unaware of the trial-group assignments reviewed symptomatic participants to generate a consensus with respect to whether their condition met the case definition.15 Secondary outcomes included the incidence of hospitalization for Covid-19 or death, the incidence of PCR-confirmed SARS-CoV-2 infection, the incidence of Covid-19 symptoms, the incidence of discontinuation of the trial intervention owing to any cause, and the severity of symptoms (if any) at days 5 and 14 according to a visual analogue scale (scores ranged from 0 [no symptoms] to 10 [severe symptoms]).

    Data on adverse events were also collected with directed questioning for common side effects along with open-ended free text. Outcome data were measured within 14 days after trial enrollment. Outcome data including PCR testing results, possible Covid-19–related symptoms, adherence to the trial intervention, side effects, and hospitalizations were all collected through participant report.

    Details of trial conduct are provided in the protocol and statistical analysis plan, available at NEJM.org. Sample Size We anticipated that illness compatible with Covid-19 would develop in 10% of close contacts exposed to Covid-19.9 Using Fisher’s exact method with a 50% relative effect size to reduce new symptomatic infections, a two-sided alpha of 0.05, and 90% power, we estimated that 621 persons would need to be enrolled in each group. With a pragmatic, Internet-based, self-referral recruitment strategy, we planned for a 20% incidence of attrition by increasing the sample size to 750 participants per group.

    We specified a priori that participants who were already symptomatic on day 1 before receiving hydroxychloroquine or placebo would be excluded from the prophylaxis trial and would instead be separately enrolled in the companion symptomatic treatment trial. Because the estimates for both incident symptomatic Covid-19 after an exposure and loss to follow-up were relatively unknown in early March 2020,9 the protocol prespecified a sample-size reestimation at the second interim analysis. This reestimation, which used the incidence of new infections in the placebo group and the observed percentage of participants lost to follow-up, was aimed at maintaining the ability to detect an effect size of a 50% relative reduction in new symptomatic infections.

    Interim Analyses An independent data and safety monitoring board externally reviewed the data after 25% and 50% of the participants had completed 14 days of follow-up. Stopping guidelines were provided to the data and safety monitoring board with the use of a Lan–DeMets spending function analogue of the O’Brien–Fleming boundaries for the primary outcome. A conditional power analysis was performed at the second and third interim analysis with the option of early stopping for futility.

    At the second interim analysis on April 22, 2020, the sample size was reduced to 956 participants who could be evaluated with 90% power on the basis of the higher-than-expected event rate of infections in the control group. At the third interim analysis on May 6, the trial was halted on the basis of a conditional power of less than 1%, since it was deemed futile to continue. Statistical Analysis We assessed the incidence of Covid-19 disease by day 14 with Fisher’s exact test.

    Secondary outcomes with respect to percentage of patients were also compared with Fisher’s exact test. Among participants in whom incident illness compatible with Covid-19 developed, we summarized the symptom severity score at day 14 with the median and interquartile range and assessed the distributions with a Kruskal–Wallis test. We conducted all analyses with SAS software, version 9.4 (SAS Institute), according to the intention-to-treat principle, with two-sided type I error with an alpha of 0.05.

    For participants with missing outcome data, we conducted a sensitivity analysis with their outcomes excluded or included as an event. Subgroups that were specified a priori included type of contact (household vs. Health care), days from exposure to enrollment, age, and sex.Trial Design and Oversight The RECOVERY trial was designed to evaluate the effects of potential treatments in patients hospitalized with Covid-19 at 176 National Health Service organizations in the United Kingdom and was supported by the National Institute for Health Research Clinical Research Network.

    (Details regarding this trial are provided in the Supplementary Appendix, available with the full text of this article at NEJM.org.) The trial is being coordinated by the Nuffield Department of Population Health at the University of Oxford, the trial sponsor. Although the randomization of patients to receive dexamethasone, hydroxychloroquine, or lopinavir–ritonavir has now been stopped, the trial continues randomization to groups receiving azithromycin, tocilizumab, or convalescent plasma. Hospitalized patients were eligible for the trial if they had clinically suspected or laboratory-confirmed SARS-CoV-2 infection and no medical history that might, in the opinion of the attending clinician, put patients at substantial risk if they were to participate in the trial.

    Initially, recruitment was limited to patients who were at least 18 years of age, but the age limit was removed starting on May 9, 2020. Pregnant or breast-feeding women were eligible. Written informed consent was obtained from all the patients or from a legal representative if they were unable to provide consent.

    The trial was conducted in accordance with the principles of the Good Clinical Practice guidelines of the International Conference on Harmonisation and was approved by the U.K. Medicines and Healthcare Products Regulatory Agency and the Cambridge East Research Ethics Committee. The protocol with its statistical analysis plan is available at NEJM.org and on the trial website at www.recoverytrial.net.

    The initial version of the manuscript was drafted by the first and last authors, developed by the writing committee, and approved by all members of the trial steering committee. The funders had no role in the analysis of the data, in the preparation or approval of the manuscript, or in the decision to submit the manuscript for publication. The first and last members of the writing committee vouch for the completeness and accuracy of the data and for the fidelity of the trial to the protocol and statistical analysis plan.

    Randomization We collected baseline data using a Web-based case-report form that included demographic data, the level of respiratory support, major coexisting illnesses, suitability of the trial treatment for a particular patient, and treatment availability at the trial site. Randomization was performed with the use of a Web-based system with concealment of the trial-group assignment. Eligible and consenting patients were assigned in a 2:1 ratio to receive either the usual standard of care alone or the usual standard of care plus oral or intravenous dexamethasone (at a dose of 6 mg once daily) for up to 10 days (or until hospital discharge if sooner) or to receive one of the other suitable and available treatments that were being evaluated in the trial.

    For some patients, dexamethasone was unavailable at the hospital at the time of enrollment or was considered by the managing physician to be either definitely indicated or definitely contraindicated. These patients were excluded from entry in the randomized comparison between dexamethasone and usual care and hence were not included in this report. The randomly assigned treatment was prescribed by the treating clinician.

    Patients and local members of the trial staff were aware of the assigned treatments. Procedures A single online follow-up form was to be completed when the patients were discharged or had died or at 28 days after randomization, whichever occurred first. Information was recorded regarding the patients’ adherence to the assigned treatment, receipt of other trial treatments, duration of admission, receipt of respiratory support (with duration and type), receipt of renal support, and vital status (including the cause of death).

    In addition, we obtained routine health care and registry data, including information on vital status (with date and cause of death), discharge from the hospital, and respiratory and renal support therapy. Outcome Measures The primary outcome was all-cause mortality within 28 days after randomization. Further analyses were specified at 6 months.

    Secondary outcomes were the time until discharge from the hospital and, among patients not receiving invasive mechanical ventilation at the time of randomization, subsequent receipt of invasive mechanical ventilation (including extracorporeal membrane oxygenation) or death. Other prespecified clinical outcomes included cause-specific mortality, receipt of renal hemodialysis or hemofiltration, major cardiac arrhythmia (recorded in a subgroup), and receipt and duration of ventilation. Statistical Analysis As stated in the protocol, appropriate sample sizes could not be estimated when the trial was being planned at the start of the Covid-19 pandemic.

    As the trial progressed, the trial steering committee, whose members were unaware of the results of the trial comparisons, determined that if 28-day mortality was 20%, then the enrollment of at least 2000 patients in the dexamethasone group and 4000 in the usual care group would provide a power of at least 90% at a two-sided P value of 0.01 to detect a clinically relevant proportional reduction of 20% (an absolute difference of 4 percentage points) between the two groups. Consequently, on June 8, 2020, the steering committee closed recruitment to the dexamethasone group, since enrollment had exceeded 2000 patients. For the primary outcome of 28-day mortality, the hazard ratio from Cox regression was used to estimate the mortality rate ratio.

    Among the few patients (0.1%) who had not been followed for 28 days by the time of the data cutoff on July 6, 2020, data were censored either on that date or on day 29 if the patient had already been discharged. That is, in the absence of any information to the contrary, these patients were assumed to have survived for 28 days. Kaplan–Meier survival curves were constructed to show cumulative mortality over the 28-day period.

    Cox regression was used to analyze the secondary outcome of hospital discharge within 28 days, with censoring of data on day 29 for patients who had died during hospitalization. For the prespecified composite secondary outcome of invasive mechanical ventilation or death within 28 days (among patients who were not receiving invasive mechanical ventilation at randomization), the precise date of invasive mechanical ventilation was not available, so a log-binomial regression model was used to estimate the risk ratio. Table 1.

    Table 1. Characteristics of the Patients at Baseline, According to Treatment Assignment and Level of Respiratory Support. Through the play of chance in the unstratified randomization, the mean age was 1.1 years older among patients in the dexamethasone group than among those in the usual care group (Table 1).

    To account for this imbalance in an important prognostic factor, estimates of rate ratios were adjusted for the baseline age in three categories (<70 years, 70 to 79 years, and ≥80 years). This adjustment was not specified in the first version of the statistical analysis plan but was added once the imbalance in age became apparent. Results without age adjustment (corresponding to the first version of the analysis plan) are provided in the Supplementary Appendix.

    Prespecified analyses of the primary outcome were performed in five subgroups, as defined by characteristics at randomization. Age, sex, level of respiratory support, days since symptom onset, and predicted 28-day mortality risk. (One further prespecified subgroup analysis regarding race will be conducted once the data collection has been completed.) In prespecified subgroups, we estimated rate ratios (or risk ratios in some analyses) and their confidence intervals using regression models that included an interaction term between the treatment assignment and the subgroup of interest.

    Chi-square tests for linear trend across the subgroup-specific log estimates were then performed in accordance with the prespecified plan. All P values are two-sided and are shown without adjustment for multiple testing. All analyses were performed according to the intention-to-treat principle.

    The full database is held by the trial team, which collected the data from trial sites and performed the analyses at the Nuffield Department of Population Health, University of Oxford..

    Can you get trazodone without a prescription

    A simple coffee and a quick catnap could be the cure for staying alert on the nightshift as new research from the University of South Australia shows that this unlikely combination can improve attention and reduce sleep inertia.In Australia, more than 1.4 million people are employed in shift work, with more than 200,000 regularly working night or evening shifts.Lead researcher, Dr Stephanie Centofanti from UniSA Online and the Sleep and Chronobiology Laboratory at UniSA says the finding could help counteract the kind of sleep inertia that is experienced by many shiftworkers."Shift workers are often chronically sleep-deprived because they have disrupted and irregular sleep patterns," Dr Centofanti says."As a result, they commonly use a range of strategies to try to boost their alertness while on the nightshift, and these can include taking power naps and drinking coffee -- yet it's important to understand that there are disadvantages can you get trazodone without a prescription for both."Many workers nap during a night shift because they get so tired. But the downside is that they can experience 'sleep inertia' -- that grogginess you have just after you wake up -- and this can impair their performance and mood for up to an hour after their nap."Caffeine is also used by can you get trazodone without a prescription many people to stay awake and alert. But again, if you have too much coffee it can harm your overall sleep and health. And, if you use it to perk you up after a nap, it can take a good 20-30 minutes to kick in, so there's a significant time delay before you feel the desired effect."A 'caffeine-nap' (or 'caff-nap') could be a viable alternative -- by drinking a coffee before taking a nap, shiftworkers can gain the benefits of a 20-30-minute can you get trazodone without a prescription nap then the perk of the caffeine when they wake.

    It's a win-win."The small pilot study tested the impact of 200 mg of caffeine (equivalent to 1-2 regular cups of coffee) consumed by participants just before a 3.30am 30-minute nap, comparing results with a group that took a placebo.Participants taking a 'caffeine-nap' showed marked improvements in both performance and alertness, indicating the potential of a 'caffeine-nap' to counteract sleep grogginess.Dr Centofanti says this shows a promising fatigue countermeasure for shift workers. She says can you get trazodone without a prescription the next move is to test the new finding on more people. Story Source can you get trazodone without a prescription. Materials provided by University of South Australia.

    Note. Content may be edited for style and length.A study of a gateway receptor for SARS-CoV-2 led by Walter Lukiw, PhD, Professor of Neuroscience, Neurology and Ophthalmology at LSU Health New Orleans' Neuroscience Center of Excellence and School of Medicine, may help explain the wide variety of symptoms and organs involved with SARS-CoV-2 infection and COVID-19. The results suggest that a multi-organ infection with SARS-CoV-2 may be via the angiotensin-converting enzyme 2 (ACE2) receptor, which is found almost everywhere throughout the body. The findings are published in the journal Cellular and Molecular Neurobiology.To better understand the mechanism and pathways of SARS-CoV-2 infection and susceptibility to specific cell and tissue types as well as organ systems, the research team analyzed 85 human tissues for the presence of ACE2 receptors.

    ACE2 is a protein that is found on the surface of many immune and nonimmune cell types. An enzyme, it is part of the system that regulates blood pressure and fluid and electrolyte balance. It may also help regulate cardiovascular, neurovascular and renal function, as well as fertility. ACE2 receptors act like locks on cells, and the SARS-CoV-2 spike proteins act like keys that open the locks letting the virus enter cells to rapidly multiply.

    As well as controls, tissues tested included lung, digestive, renal-excretory, reproductive, eye tissues, and 21 different regions of the brain."Besides strong ACE2 expression in respiratory, digestive, renal-excretory and reproductive cells, high ACE2 expression was also found in the amygdala, cerebral cortex and brainstem," reports Dr. Lukiw. "This may help explain cognitive deficits associated with SARS-CoV-2 infection. Some of the highest ACE2 expression levels were found in the pons and medulla oblongata in the human brainstem, an anatomical region of the brain containing the medullary respiratory centers, and this may in part explain the susceptibility of many CoV-19 patients to severe respiratory distress."The team further noted that ACE2 receptor activity was also easily detected in the eye, suggesting that the visual system may provide an additional entry point for SARS-CoV-2 invasion and that under certain conditions, eyeglasses or face shields may be as important as face masks in reducing SARS-CoV-2 transmission and infection."Several important research gaps remain," Lukiw concludes.

    "A real danger of SARS-CoV-2 infection is not only its highly transmissible and contagious nature and lethality, but also its simultaneous and multipronged attack on many human cell and tissue types involving vital and critical respiratory, immunological, vascular, renal-excretory and neural systems as well as an unprecedented coordinated disruption of the complex neurophysiology, neurochemistry, neurobiology and neurology of the cells of the brain and central nervous system (CNS) that normally regulate these multiple physiological systems."The authors credit the late Dr. James M. Hill (formerly a Professor in the Departments of Microbiology, Ophthalmology and Pharmacology at LSU Health New Orleans School of Medicine) with whom they had a longstanding research collaboration on the expression of the ACE2 receptors, including those found in the Alzheimer's disease brain. Aileen Pogue, from Alchem Biotech Research in Toronto, also participated in the research data tabulation, bioinformatics and statistical analysis.The research was supported by grants from Research to Prevent Blindness (RPB).

    The Louisiana Biotechnology Research Network (LBRN). And NIH grants NEI EY006311, NIA AG18031 and NIA AG038834.SOBRE NOTICIAS EN ESPAÑOLNoticias en español es una sección de Kaiser Health News que contiene traducciones de artículos de gran interés para la comunidad hispanohablante, y contenido original enfocado en la población hispana que vive en los Estados Unidos. Use Nuestro Contenido Este contenido puede usarse de manera gratuita (detalles). La temporada de influenza se verá diferente este año, ya que los Estados Unidos se enfrentan a una pandemia de coronavirus que ya ha matado a más de 176.000 personas.Muchos estadounidenses son reacios a ir al médico y los funcionarios de salud pública temen que las personas eviten vacunarse.

    Aunque a veces se considera incorrectamente como un resfriado, la gripe también mata a decenas de miles de personas en el país cada año. Los más vulnerables son los niños pequeños, los adultos mayores y las personas con enfermedades subyacentes. Cuando se combina con los efectos de COVID-19, los expertos en salud pública dicen que es más importante que nunca vacunarse contra la gripe.Si una cantidad suficiente de la población se vacuna, más del 45% lo hizo la temporada de gripe pasada, podría ayudar a evitar un escenario de pesadilla este invierno, con hospitales llenos de pacientes con COVID-19 y los que sufren los efectos graves de la influenza.Además de la posible carga para los hospitales, existe la posibilidad de que las personas contraigan ambos virus y “nadie sabe qué sucede si se contrae influenza y COVID simultáneamente porque nunca sucedió antes”, dijo la doctora Rachel Levine, secretaria de Salud de Pennsylvania, a reporteros.En respuesta, este año los fabricantes están produciendo más suministros de vacunas, entre 194 y 198 millones de dosis, unas 20 millones más de las que se distribuyeron la temporada pasada, según los Centros para el Control y Prevención de Enfermedades (CDC).Mientras se acerca la temporada de gripe, aquí hay algunas respuestas a preguntas frecuentes:P. ¿Cuándo debo vacunarme contra la gripe?.

    La publicidad ya ha comenzado y algunas farmacias y clínicas ya tienen sus suministros. Pero, debido a que la efectividad de la vacuna puede disminuir con el tiempo, los CDC recomiendan no recibir la dosis en agosto.Muchas farmacias y clínicas comenzarán las inmunizaciones a principios de septiembre. Generalmente, los virus de la influenza comienzan a circular a mediados o fines de octubre, pero se expanden masivamente más tarde, en el invierno. Se necesitan aproximadamente dos semanas después de recibir la inyección para que los anticuerpos, que circulan en la sangre y frustran las infecciones, se acumulen.“Las personas jóvenes y sanas pueden comenzar a vacunarse contra la gripe en septiembre, y las personas mayores y otras poblaciones vulnerables pueden hacerlo en octubre”, dijo el doctor Steve Miller, director clínico de la aseguradora Cigna.Los CDC recomiendan que las personas “se vacunen contra la influenza a fines de octubre”, pero señalaron que se puede recibir la vacuna más tarde porque “aún puede ser beneficiosas y la vacunación debe ofrecerse a lo largo de toda la temporada de influenza”.Aun así, algunos expertos recomiendan no esperar demasiado este año, no solo por COVID-19, sino también en caso de que haya escasez debido a la abrumadora demanda.P.

    ¿Cuáles son las razones por las que las que debería ofrecer mi brazo para vacunarme?. Hay que vacunarse porque brinda protección contra la gripe y, por lo tanto, contra la propagación a otras personas, lo que puede ayudar a disminuir la carga para los hospitales y el personal médico.Y hay otro mensaje que puede resonar en estos tiempos extraños.“Le da a la gente la sensación de que hay algunas cosas que pueden controlar”, dijo Eduardo Sánchez, director médico de prevención de la American Heart Association.Si bien una vacuna contra la gripe no evitará COVID-19, recibirla podría ayudar al médico a diferenciar entre las dos enfermedades si se desarrolla algún síntoma (fiebre, tos, dolor de garganta) que ambas infecciones comparten, explicó Sánchez.Y aunque las vacunas contra la gripe no evitarán todos los casos de gripe, vacunarse puede reducir la gravedad si la persona se enferma, dijo.Todas las personas elegibles, especialmente los trabajadores esenciales, los que sufren de afecciones subyacentes y aquellos en mayor riesgo, incluidos los niños muy pequeños y las mujeres embarazadas, deben buscar protección, dijeron los CDC. La entidad recomienda la vacunación a partir de los 6 meses.P. ¿Qué sabemos sobre la efectividad de la vacuna de este año?.

    Se deben producir nuevas vacunas contra la gripe cada año, porque el virus muta y la efectividad de la vacuna varía, dependiendo de qué tan bien coincida con el virus circulante.Se calculó que la formulación del año pasado tuvo una eficacia de aproximadamente un 45% para prevenir la gripe en general, con una efectividad de aproximadamente un 55% en los niños. Las vacunas disponibles en el país este año tienen como objetivo prevenir al menos tres cepas diferentes del virus, y la mayoría cubre cuatro.Todavía no se sabe qué tan bien coincidirá el suministro de este año con las cepas que circularán en los Estados Unidos. Las primeras indicaciones del hemisferio sur, que atraviesa su temporada de gripe durante nuestro verano, son alentadoras. Allí, las personas practicaron el distanciamiento social, usaron máscaras y se vacunaron en mayor número este año, y los niveles mundiales de gripe son más bajos de lo esperado.

    Sin embargo, expertos advierten que no se debe contar con una temporada igual de suave en los Estados Unidos, en parte porque los esfuerzos por usar mascara facial y de distanciamiento social varían ampliamente.P. ¿Qué están haciendo diferente los seguros y sistemas de salud este año?. Las aseguradoras y los sistemas de salud contactados por KHN dicen que seguirán las pautas de los CDC, que exigen limitar y espaciar la cantidad de personas que esperan en las filas y las áreas de vacunación. Algunos están programando citas para vacunas contra la gripe para ayudar a controlar el flujo.Health Fitness Concepts, una compañía que trabaja con UnitedHealth Group y otras empresas para establecer clínicas de vacunación contra la gripe en el noreste del país, dijo que está “fomentando eventos más pequeños y frecuentes para apoyar el distanciamiento social” y “exigiendo que se completen todos los formularios y arremangarse las camisas antes de entrar al área de vacunación contra la influenza”.Se requerirá que todos usen máscaras.Además, a nivel nacional, algunos grupos médicos contratados por UnitedHealth instalarán carpas, para que las inyecciones se puedan administrar al aire libre, dijo un vocero.Kaiser Permanente planifica las vacunas directamente en autos en algunos de sus centros médicos y está probando los procedimientos de detección y registro sin contacto en algunos lugares.Geisinger Health, un proveedor de salud regional en Pennsylvania y Nueva Jersey, dijo que también tendría programas de vacunación contra la influenza al aire libre en sus instalaciones.Además, “Geisinger exige que todos los empleados reciban la vacuna contra la influenza este año”, dijo Mark Shelly, director de prevención y control de infecciones del sistema.

    €œAl dar este paso, esperamos transmitir a nuestros vecinos la importancia de la vacuna contra la influenza para todos”.P. Por lo general, me vacunan contra la gripe en el trabajo. ¿Seguirá siendo una opción este año?. Con el objetivo de evitar riesgosas reuniones en interiores, muchos empleadores se muestran reacios a patrocinar las clínicas de gripe en oficinas como han ofrecido en años anteriores.

    Y con tanta gente que sigue trabajando desde casa, hay menos necesidad de llevar las vacunas contra la gripe al lugar de trabajo. En cambio, muchos empleadores están alentando a los trabajadores a que reciban vacunas de sus médicos de atención primaria, en farmacias u otros entornos comunitarios. El seguro generalmente cubrirá el costo de la vacuna.Algunos empleadores están considerando ofrecer cupones para vacunas contra la gripe a sus trabajadores sin seguro o a aquellos que no participan en el plan médico de la compañía, dijo Julie Stone, directora general de salud y beneficios de Willis Towers Watson, una firma consultora.Estos cupones podrían, por ejemplo, permitir a los trabajadores obtener la vacuna en un laboratorio en particular sin costo.Algunos empleadores están comenzando a pensar en cómo podrían usar sus estacionamientos para administrar vacunas contra la gripe enlos autos, dijo el doctor David Zieg, líder de servicios clínicos para el consultor de beneficios Mercer.Aunque la ley federal permite a los empleadores exigir a los empleados que se vacunen contra la gripe, ese paso generalmente lo toman solo los centros de atención médica y algunas universidades donde las personas viven y trabajan en estrecha colaboración, dijo Zieg.Pero sucede. El mes pasado, el sistema de la Universidad de California emitió una orden ejecutiva que requiere que todos los estudiantes, profesores y personal se vacunen contra la gripe antes del 1 de noviembre, con limitadas excepciones.P.

    ¿Qué están haciendo las farmacias para alentar a las personas a vacunarse contra la gripe?. Algunas farmacias están haciendo un esfuerzo adicional para salir a la comunidad y ofrecer vacunas contra la gripe.Walgreens, que tiene casi 9,100 farmacias en todo el país, continúa una asociación iniciada en 2015 con organizaciones comunitarias, iglesias y empleadores que ha ofrecido alrededor de 150,000 clínicas de gripe móviles hasta la fecha.El programa pone especial énfasis en trabajar con poblaciones vulnerables y en áreas desatendidas, dijo el doctor Kevin Ban, director médico de la cadena de farmacias.Walgreens comenzó a ofrecer vacunas contra la gripe a mediados de agosto y está animando a las personas a no demorar en vacunarse.Tanto Walgreens como CVS están estimulando a las personas a programar citas y hacer trámites en línea este año para minimizar el tiempo que pasan en los locales.En los CVS MinuteClinic, una vez que los pacientes se han registrado para recibir la vacuna contra la gripe, deben esperar afuera o en su automóvil, ya que las áreas de espera interiores ahora están cerradas.“No tenemos un arsenal contra COVID”, dijo Ban, de Walgreens. €œPero quitar la presión del sistema de atención médica proporcionando vacunas por adelantado es algo que sí podemos hacer”. Julie Appleby.

    jappleby@kff.org, @Julie_Appleby Michelle Andrews. andrews.khn@gmail.com, @mandrews110 Related Topics Insurance Noticias En Español Public Health CDC COVID-19 Insurers VaccinesThis story was produced in partnership with PolitiFact. This story can be republished for free (details). President Donald Trump accepted the Republican Party’s nomination for president in a 70-minute speech from the South Lawn of the White House on Thursday night.Speaking to a friendly crowd that didn’t appear to be observing social distancing conventions, and with few participants wearing masks, he touched on a range of topics, including many related to the COVID pandemic and health care in general.Throughout, the partisan crowd applauded and chanted “Four more years!. € And, even as the nation’s COVID-19 death toll exceeded 180,000, Trump was upbeat.

    €œIn recent months, our nation and the entire planet has been struck by a new and powerful invisible enemy,” he said. €œLike those brave Americans before us, we are meeting this challenge.”At the end of the event, there were fireworks.Our partners at PolitiFact did an in-depth fact check on Trump’s entire acceptance speech. Here are the highlights related to the administration’s COVID-19 response and other health policy issues:“We developed, from scratch, the largest and most advanced testing system in the world.” This is partially right, but it needs context.It’s accurate that the U.S. Developed its COVID-19 testing system from scratch, because the government didn’t accept the World Health Organization’s testing recipe.

    But whether the system is the “largest” or “most advanced” is subject to debate.The U.S. Has tested more individuals than any other country. But experts told us a more meaningful metric would be the percentage of positive tests out of all tests, indicating that not only sick people were getting tested. Another useful metric would be the percentage of the population that has been tested.

    The U.S. Is one of the most populous countries but has tested a lower percentage of its population than other countries. Don't Miss A Story Subscribe to KHN’s free Weekly Edition newsletter. The U.S.

    Was also slower than other countries in rolling out tests and amping up testing capacity. Even now, many states are experiencing delays in reporting test results to positive individuals.As for “the most advanced,” Trump may be referring to new testing investments and systems, like Abbott’s recently announced $5, 15-minute rapid antigen test, which the company says will be about the size of a credit card, needs no instrumentation and comes with a phone app through which people can view their results. But Trump’s comment makes it sound as if these testing systems are already in place when they haven’t been distributed to the public.“The United States has among the lowest [COVID-19] case fatality rates of any major country in the world. The European Union’s case fatality rate is nearly three times higher than ours.”The case fatality rate measures the known number of cases against the known number of deaths.

    The European Union has a rate that’s about 2½ times greater than the United States.But the source of that data, Oxford University’s Our World in Data project, reports that “during an outbreak of a pandemic, the case fatality rate is a poor measure of the mortality risk of the disease.”A better way to measure the threat of the virus, experts say, is to look at the number of deaths per 100,000 residents. Viewed that way, the U.S. Has the 10th-highest death rate in the world.“We will produce a vaccine before the end of the year, or maybe even sooner.”It’s far from guaranteed that a coronavirus vaccine will be ready before the end of the year.While researchers are making rapid strides, it’s not yet known precisely when the vaccine will be available to the public, which is what’s most important. Six vaccines are in the third phase of testing, which involves thousands of patients.

    Like earlier phases, this one looks at the safety of a vaccine but also examines its effectiveness and collects more data on side effects. Results of the third phase will be submitted to the Food and Drug Administration for approval.The government website Operation Warp Speed seems less optimistic than Trump, announcing it “aims to deliver 300 million doses of a safe, effective vaccine for COVID-19 by January 2021.”And federal health officials and other experts have generally predicted a vaccine will be available in early 2021. Federal committees are working on recommendations for vaccine distribution, including which groups should get it first. €œFrom everything we’ve seen now — in the animal data, as well as the human data — we feel cautiously optimistic that we will have a vaccine by the end of this year and as we go into 2021,” said Dr.

    Anthony Fauci, the nation’s top infectious diseases expert. €œI don’t think it’s dreaming.”“Last month, I took on Big Pharma. You think that is easy?. I signed orders that would massively lower the cost of your prescription drugs.”Quite misleading.

    Trump signed four executive orders on July 24 aimed at lowering prescription drug prices. But those orders haven’t taken effect yet — the text of one hasn’t even been made publicly available — and experts told us that, if implemented, the measures would be unlikely to result in significant drug price reductions for the majority of Americans.“We will always and very strongly protect patients with preexisting conditions, and that is a pledge from the entire Republican Party.”Trump’s pledge is undermined by his efforts to overturn the Affordable Care Act, the only law that guarantees people with preexisting conditions both receive health coverage and do not have to pay more for it than others do. In 2017, Trump supported congressional efforts to repeal the ACA. The Trump administration is now backing GOP-led efforts to overturn the ACA through a court case.

    And Trump has also expanded short-term health plans that don’t have to comply with the ACA.“Joe Biden recently raised his hand on the debate stage and promised he was going to give it away, your health care dollars to illegal immigrants, which is going to bring a massive number of immigrants into our country.”This is misleading. During a June 2019 Democratic primary debate, candidates were asked. €œRaise your hand if your government plan would provide coverage for undocumented immigrants.” All candidates on stage, including Biden, raised their hands. They were not asked if that coverage would be free or subsidized.Biden supports extending health care access to all immigrants, regardless of immigration status.

    A task force recommended that he allow immigrants who are in the country illegally to buy health insurance, without federal subsidies.“Joe Biden claims he has empathy for the vulnerable, yet the party he leads supports the extreme late-term abortion of defenseless babies right up to the moment of birth.”This mischaracterizes the Democratic Party’s stance on abortion and Biden’s position.Biden has said he would codify the Supreme Court’s ruling in Roe v. Wade and related precedents. This would generally limit abortions to the first 20 to 24 weeks of gestation. States are allowed under court rulings to ban abortion after the point at which a fetus can sustain life, usually considered to be between 24 and 28 weeks from the mother’s last menstrual period — and 43 states do.

    But the rulings require states to make exceptions “to preserve the life or health of the mother.” Late-term abortions are very rare, about 1%.The Democratic Party platform holds that “every woman should have access to quality reproductive health care services, including safe and legal abortion — regardless of where she lives, how much money she makes, or how she is insured.” It does not address late-term abortion.PolitiFact’s Daniel Funke, Jon Greenberg, Louis Jacobson, Noah Y. Kim, Bill McCarthy, Samantha Putterman, Amy Sherman, Miriam Valverde and KHN reporter Victoria Knight contributed to this report. Related Topics Elections Health Industry Pharmaceuticals Public Health The Health Law Abortion COVID-19 Immigrants KHN &. PolitiFact HealthCheck Preexisting Conditions Trump Administration Vaccines.

    A simple coffee and a quick catnap could be the cure for staying trazodone webmd alert on the nightshift as new research from the University of South Australia shows that this unlikely combination can improve attention and reduce sleep inertia.In Australia, more than 1.4 million people are employed in shift work, with more than 200,000 regularly working night or evening shifts.Lead researcher, Dr Stephanie Centofanti from UniSA Online and the Sleep and Chronobiology Laboratory at UniSA says the finding could help counteract the kind of sleep inertia that is experienced by many shiftworkers."Shift workers are often chronically sleep-deprived online pharmacy trazodone because they have disrupted and irregular sleep patterns," Dr Centofanti says."As a result, they commonly use a range of strategies to try to boost their alertness while on the nightshift, and these can include taking power naps and drinking coffee -- yet it's important to understand that there are disadvantages for both."Many workers nap during a night shift because they get so tired. But the downside is that they can experience 'sleep inertia' -- that grogginess you have just online pharmacy trazodone after you wake up -- and this can impair their performance and mood for up to an hour after their nap."Caffeine is also used by many people to stay awake and alert. But again, if you have too much coffee it can harm your overall sleep and health. And, if you use it to perk you online pharmacy trazodone up after a nap, it can take a good 20-30 minutes to kick in, so there's a significant time delay before you feel the desired effect."A 'caffeine-nap' (or 'caff-nap') could be a viable alternative -- by drinking a coffee before taking a nap, shiftworkers can gain the benefits of a 20-30-minute nap then the perk of the caffeine when they wake.

    It's a win-win."The small pilot study tested the impact of 200 mg of caffeine (equivalent to 1-2 regular cups of coffee) consumed by participants just before a 3.30am 30-minute nap, comparing results with a group that took a placebo.Participants taking a 'caffeine-nap' showed marked improvements in both performance and alertness, indicating the potential of a 'caffeine-nap' to counteract sleep grogginess.Dr Centofanti says this shows a promising fatigue countermeasure for shift workers. She says the next move online pharmacy trazodone is to test the new finding on more people. Story Source online pharmacy trazodone. Materials provided by University of South Australia.

    Note. Content may be edited for style and length.A study of a gateway receptor for SARS-CoV-2 led by Walter Lukiw, PhD, Professor of Neuroscience, Neurology and Ophthalmology at LSU Health New Orleans' Neuroscience Center of Excellence and School of Medicine, may help explain the wide variety of symptoms and organs involved with SARS-CoV-2 infection and COVID-19. The results suggest that a multi-organ infection with SARS-CoV-2 may be via the angiotensin-converting enzyme 2 (ACE2) receptor, which is found almost everywhere throughout the body. The findings are published in the journal Cellular and Molecular Neurobiology.To better understand the mechanism and pathways of SARS-CoV-2 infection and susceptibility to specific cell and tissue types as well as organ systems, the research team analyzed 85 human tissues for the presence of ACE2 receptors.

    ACE2 is a protein that is found on the surface of many immune and nonimmune cell types. An enzyme, it is part of the system that regulates blood pressure and fluid and electrolyte balance. It may also help regulate cardiovascular, neurovascular and renal function, as well as fertility. ACE2 receptors act like locks on cells, and the SARS-CoV-2 spike proteins act like keys that open the locks letting the virus enter cells to rapidly multiply.

    As well as controls, tissues tested included lung, digestive, renal-excretory, reproductive, eye tissues, and 21 different regions of the brain."Besides strong ACE2 expression in respiratory, digestive, renal-excretory and reproductive cells, high ACE2 expression was also found in the amygdala, cerebral cortex and brainstem," reports Dr. Lukiw. "This may help explain cognitive deficits associated with SARS-CoV-2 infection. Some of the highest ACE2 expression levels were found in the pons and medulla oblongata in the human brainstem, an anatomical region of the brain containing the medullary respiratory centers, and this may in part explain the susceptibility of many CoV-19 patients to severe respiratory distress."The team further noted that ACE2 receptor activity was also easily detected in the eye, suggesting that the visual system may provide an additional entry point for SARS-CoV-2 invasion and that under certain conditions, eyeglasses or face shields may be as important as face masks in reducing SARS-CoV-2 transmission and infection."Several important research gaps remain," Lukiw concludes.

    "A real danger of SARS-CoV-2 infection is not only its highly transmissible and contagious nature and lethality, but also its simultaneous and multipronged attack on many human cell and tissue types involving vital and critical respiratory, immunological, vascular, renal-excretory and neural systems as well as an unprecedented coordinated disruption of the complex neurophysiology, neurochemistry, neurobiology and neurology of the cells of the brain and central nervous system (CNS) that normally regulate these multiple physiological systems."The authors credit the late Dr. James M. Hill (formerly a Professor in the Departments of Microbiology, Ophthalmology and Pharmacology at LSU Health New Orleans School of Medicine) with whom they had a longstanding research collaboration on the expression of the ACE2 receptors, including those found in the Alzheimer's disease brain. Aileen Pogue, from Alchem Biotech Research in Toronto, also participated in the research data tabulation, bioinformatics and statistical analysis.The research was supported by grants from Research to Prevent Blindness (RPB).

    The Louisiana Biotechnology Research Network (LBRN). And NIH grants NEI EY006311, NIA AG18031 and NIA AG038834.SOBRE NOTICIAS EN ESPAÑOLNoticias en español es una sección de Kaiser Health News que contiene traducciones de artículos de gran interés para la comunidad hispanohablante, y contenido original enfocado en la población hispana que vive en los Estados Unidos. Use Nuestro Contenido Este contenido puede usarse de manera gratuita (detalles). La temporada de influenza se verá diferente este año, ya que los Estados Unidos se enfrentan a una pandemia de coronavirus que ya ha matado a más de 176.000 personas.Muchos estadounidenses son reacios a ir al médico y los funcionarios de salud pública temen que las personas eviten vacunarse.

    Aunque a veces se considera incorrectamente como un resfriado, la gripe también mata a decenas de miles de personas en el país cada año. Los más vulnerables son los niños pequeños, los adultos mayores y las personas con enfermedades subyacentes. Cuando se combina con los efectos de COVID-19, los expertos en salud pública dicen que es más importante que nunca vacunarse contra la gripe.Si una cantidad suficiente de la población se vacuna, más del 45% lo hizo la temporada de gripe pasada, podría ayudar a evitar un escenario de pesadilla este invierno, con hospitales llenos de pacientes con COVID-19 y los que sufren los efectos graves de la influenza.Además de la posible carga para los hospitales, existe la posibilidad de que las personas contraigan ambos virus y “nadie sabe qué sucede si se contrae influenza y COVID simultáneamente porque nunca sucedió antes”, dijo la doctora Rachel Levine, secretaria de Salud de Pennsylvania, a reporteros.En respuesta, este año los fabricantes están produciendo más suministros de vacunas, entre 194 y 198 millones de dosis, unas 20 millones más de las que se distribuyeron la temporada pasada, según los Centros para el Control y Prevención de Enfermedades (CDC).Mientras se acerca la temporada de gripe, aquí hay algunas respuestas a preguntas frecuentes:P. ¿Cuándo debo vacunarme contra la gripe?.

    La publicidad ya ha comenzado y algunas farmacias y clínicas ya tienen sus suministros. Pero, debido a que la efectividad de la vacuna puede disminuir con el tiempo, los CDC recomiendan no recibir la dosis en agosto.Muchas farmacias y clínicas comenzarán las inmunizaciones a principios de septiembre. Generalmente, los virus de la influenza comienzan a circular a mediados o fines de octubre, pero se expanden masivamente más tarde, en el invierno. Se necesitan aproximadamente dos semanas después de recibir la inyección para que los anticuerpos, que circulan en la sangre y frustran las infecciones, se acumulen.“Las personas jóvenes y sanas pueden comenzar a vacunarse contra la gripe en septiembre, y las personas mayores y otras poblaciones vulnerables pueden hacerlo en octubre”, dijo el doctor Steve Miller, director clínico de la aseguradora Cigna.Los CDC recomiendan que las personas “se vacunen contra la influenza a fines de octubre”, pero señalaron que se puede recibir la vacuna más tarde porque “aún puede ser beneficiosas y la vacunación debe ofrecerse a lo largo de toda la temporada de influenza”.Aun así, algunos expertos recomiendan no esperar demasiado este año, no solo por COVID-19, sino también en caso de que haya escasez debido a la abrumadora demanda.P.

    ¿Cuáles son las razones por las que las que debería ofrecer mi brazo para vacunarme?. Hay que vacunarse porque brinda protección contra la gripe y, por lo tanto, contra la propagación a otras personas, lo que puede ayudar a disminuir la carga para los hospitales y el personal médico.Y hay otro mensaje que puede resonar en estos tiempos extraños.“Le da a la gente la sensación de que hay algunas cosas que pueden controlar”, dijo Eduardo Sánchez, director médico de prevención de la American Heart Association.Si bien una vacuna contra la gripe no evitará COVID-19, recibirla podría ayudar al médico a diferenciar entre las dos enfermedades si se desarrolla algún síntoma (fiebre, tos, dolor de garganta) que ambas infecciones comparten, explicó Sánchez.Y aunque las vacunas contra la gripe no evitarán todos los casos de gripe, vacunarse puede reducir la gravedad si la persona se enferma, dijo.Todas las personas elegibles, especialmente los trabajadores esenciales, los que sufren de afecciones subyacentes y aquellos en mayor riesgo, incluidos los niños muy pequeños y las mujeres embarazadas, deben buscar protección, dijeron los CDC. La entidad recomienda la vacunación a partir de los 6 meses.P. ¿Qué sabemos sobre la efectividad de la vacuna de este año?.

    Se deben producir nuevas vacunas contra la gripe cada año, porque el virus muta y la efectividad de la vacuna varía, dependiendo de qué tan bien coincida con el virus circulante.Se calculó que la formulación del año pasado tuvo una eficacia de aproximadamente un 45% para prevenir la gripe en general, con una efectividad de aproximadamente un 55% en los niños. Las vacunas disponibles en el país este año tienen como objetivo prevenir al menos tres cepas diferentes del virus, y la mayoría cubre cuatro.Todavía no se sabe qué tan bien coincidirá el suministro de este año con las cepas que circularán en los Estados Unidos. Las primeras indicaciones del hemisferio sur, que atraviesa su temporada de gripe durante nuestro verano, son alentadoras. Allí, las personas practicaron el distanciamiento social, usaron máscaras y se vacunaron en mayor número este año, y los niveles mundiales de gripe son más bajos de lo esperado.

    Sin embargo, expertos advierten que no se debe contar con una temporada igual de suave en los Estados Unidos, en parte porque los esfuerzos por usar mascara facial y de distanciamiento social varían ampliamente.P. ¿Qué están haciendo diferente los seguros y sistemas de salud este año?. Las aseguradoras y los sistemas de salud contactados por KHN dicen que seguirán las pautas de los CDC, que exigen limitar y espaciar la cantidad de personas que esperan en las filas y las áreas de vacunación. Algunos están programando citas para vacunas contra la gripe para ayudar a controlar el flujo.Health Fitness Concepts, una compañía que trabaja con UnitedHealth Group y otras empresas para establecer clínicas de vacunación contra la gripe en el noreste del país, dijo que está “fomentando eventos más pequeños y frecuentes para apoyar el distanciamiento social” y “exigiendo que se completen todos los formularios y arremangarse las camisas antes de entrar al área de vacunación contra la influenza”.Se requerirá que todos usen máscaras.Además, a nivel nacional, algunos grupos médicos contratados por UnitedHealth instalarán carpas, para que las inyecciones se puedan administrar al aire libre, dijo un vocero.Kaiser Permanente planifica las vacunas directamente en autos en algunos de sus centros médicos y está probando los procedimientos de detección y registro sin contacto en algunos lugares.Geisinger Health, un proveedor de salud regional en Pennsylvania y Nueva Jersey, dijo que también tendría programas de vacunación contra la influenza al aire libre en sus instalaciones.Además, “Geisinger exige que todos los empleados reciban la vacuna contra la influenza este año”, dijo Mark Shelly, director de prevención y control de infecciones del sistema.

    €œAl dar este paso, esperamos transmitir a nuestros vecinos la importancia de la vacuna contra la influenza para todos”.P. Por lo general, me vacunan contra la gripe en el trabajo. ¿Seguirá siendo una opción este año?. Con el objetivo de evitar riesgosas reuniones en interiores, muchos empleadores se muestran reacios a patrocinar las clínicas de gripe en oficinas como han ofrecido en años anteriores.

    Y con tanta gente que sigue trabajando desde casa, hay menos necesidad de llevar las vacunas contra la gripe al lugar de trabajo. En cambio, muchos empleadores están alentando a los trabajadores a que reciban vacunas de sus médicos de atención primaria, en farmacias u otros entornos comunitarios. El seguro generalmente cubrirá el costo de la vacuna.Algunos empleadores están considerando ofrecer cupones para vacunas contra la gripe a sus trabajadores sin seguro o a aquellos que no participan en el plan médico de la compañía, dijo Julie Stone, directora general de salud y beneficios de Willis Towers Watson, una firma consultora.Estos cupones podrían, por ejemplo, permitir a los trabajadores obtener la vacuna en un laboratorio en particular sin costo.Algunos empleadores están comenzando a pensar en cómo podrían usar sus estacionamientos para administrar vacunas contra la gripe enlos autos, dijo el doctor David Zieg, líder de servicios clínicos para el consultor de beneficios Mercer.Aunque la ley federal permite a los empleadores exigir a los empleados que se vacunen contra la gripe, ese paso generalmente lo toman solo los centros de atención médica y algunas universidades donde las personas viven y trabajan en estrecha colaboración, dijo Zieg.Pero sucede. El mes pasado, el sistema de la Universidad de California emitió una orden ejecutiva que requiere que todos los estudiantes, profesores y personal se vacunen contra la gripe antes del 1 de noviembre, con limitadas excepciones.P.

    ¿Qué están haciendo las farmacias para alentar a las personas a vacunarse contra la gripe?. Algunas farmacias están haciendo un esfuerzo adicional para salir a la comunidad y ofrecer vacunas contra la gripe.Walgreens, que tiene casi 9,100 farmacias en todo el país, continúa una asociación iniciada en 2015 con organizaciones comunitarias, iglesias y empleadores que ha ofrecido alrededor de 150,000 clínicas de gripe móviles hasta la fecha.El programa pone especial énfasis en trabajar con poblaciones vulnerables y en áreas desatendidas, dijo el doctor Kevin Ban, director médico de la cadena de farmacias.Walgreens comenzó a ofrecer vacunas contra la gripe a mediados de agosto y está animando a las personas a no demorar en vacunarse.Tanto Walgreens como CVS están estimulando a las personas a programar citas y hacer trámites en línea este año para minimizar el tiempo que pasan en los locales.En los CVS MinuteClinic, una vez que los pacientes se han registrado para recibir la vacuna contra la gripe, deben esperar afuera o en su automóvil, ya que las áreas de espera interiores ahora están cerradas.“No tenemos un arsenal contra COVID”, dijo Ban, de Walgreens. €œPero quitar la presión del sistema de atención médica proporcionando vacunas por adelantado es algo que sí podemos hacer”. Julie Appleby.

    jappleby@kff.org, @Julie_Appleby Michelle Andrews. andrews.khn@gmail.com, @mandrews110 Related Topics Insurance Noticias En Español Public Health CDC COVID-19 Insurers VaccinesThis story was produced in partnership with PolitiFact. This story can be republished for free (details). President Donald Trump accepted the Republican Party’s nomination for president in a 70-minute speech from the South Lawn of the White House on Thursday night.Speaking to a friendly crowd that didn’t appear to be observing social distancing conventions, and with few participants wearing masks, he touched on a range of topics, including many related to the COVID pandemic and health care in general.Throughout, the partisan crowd applauded and chanted “Four more years!. € And, even as the nation’s COVID-19 death toll exceeded 180,000, Trump was upbeat.

    €œIn recent months, our nation and the entire planet has been struck by a new and powerful invisible enemy,” he said. €œLike those brave Americans before us, we are meeting this challenge.”At the end of the event, there were fireworks.Our partners at PolitiFact did an in-depth fact check on Trump’s entire acceptance speech. Here are the highlights related to the administration’s COVID-19 response and other health policy issues:“We developed, from scratch, the largest and most advanced testing system in the world.” This is partially right, but it needs context.It’s accurate that the U.S. Developed its COVID-19 testing system from scratch, because the government didn’t accept the World Health Organization’s testing recipe.

    But whether the system is the “largest” or “most advanced” is subject to debate.The U.S. Has tested more individuals than any other country. But experts told us a more meaningful metric would be the percentage of positive tests out of all tests, indicating that not only sick people were getting tested. Another useful metric would be the percentage of the population that has been tested.

    The U.S. Is one of the most populous countries but has tested a lower percentage of its population than other countries. Don't Miss A Story Subscribe to KHN’s free Weekly Edition newsletter. The U.S.

    Was also slower than other countries in rolling out tests and amping up testing capacity. Even now, many states are experiencing delays in reporting test results to positive individuals.As for “the most advanced,” Trump may be referring to new testing investments and systems, like Abbott’s recently announced $5, 15-minute rapid antigen test, which the company says will be about the size of a credit card, needs no instrumentation and comes with a phone app through which people can view their results. But Trump’s comment makes it sound as if these testing systems are already in place when they haven’t been distributed to the public.“The United States has among the lowest [COVID-19] case fatality rates of any major country in the world. The European Union’s case fatality rate is nearly three times higher than ours.”The case fatality rate measures the known number of cases against the known number of deaths.

    The European Union has a rate that’s about 2½ times greater than the United States.But the source of that data, Oxford University’s Our World in Data project, reports that “during an outbreak of a pandemic, the case fatality rate is a poor measure of the mortality risk of the disease.”A better way to measure the threat of the virus, experts say, is to look at the number of deaths per 100,000 residents. Viewed that way, the U.S. Has the 10th-highest death rate in the world.“We will produce a vaccine before the end of the year, or maybe even sooner.”It’s far from guaranteed that a coronavirus vaccine will be ready before the end of the year.While researchers are making rapid strides, it’s not yet known precisely when the vaccine will be available to the public, which is what’s most important. Six vaccines are in the third phase of testing, which involves thousands of patients.

    Like earlier phases, this one looks at the safety of a vaccine but also examines its effectiveness and collects more data on side effects. Results of the third phase will be submitted to the Food and Drug Administration for approval.The government website Operation Warp Speed seems less optimistic than Trump, announcing it “aims to deliver 300 million doses of a safe, effective vaccine for COVID-19 by January 2021.”And federal health officials and other experts have generally predicted a vaccine will be available in early 2021. Federal committees are working on recommendations for vaccine distribution, including which groups should get it first. €œFrom everything we’ve seen now — in the animal data, as well as the human data — we feel cautiously optimistic that we will have a vaccine by the end of this year and as we go into 2021,” said Dr.

    Anthony Fauci, the nation’s top infectious diseases expert. €œI don’t think it’s dreaming.”“Last month, I took on Big Pharma. You think that is easy?. I signed orders that would massively lower the cost of your prescription drugs.”Quite misleading.

    Trump signed four executive orders on July 24 aimed at lowering prescription drug prices. But those orders haven’t taken effect yet — the text of one hasn’t even been made publicly available — and experts told us that, if implemented, the measures would be unlikely to result in significant drug price reductions for the majority of Americans.“We will always and very strongly protect patients with preexisting conditions, and that is a pledge from the entire Republican Party.”Trump’s pledge is undermined by his efforts to overturn the Affordable Care Act, the only law that guarantees people with preexisting conditions both receive health coverage and do not have to pay more for it than others do. In 2017, Trump supported congressional efforts to repeal the ACA. The Trump administration is now backing GOP-led efforts to overturn the ACA through a court case.

    And Trump has also expanded short-term health plans that don’t have to comply with the ACA.“Joe Biden recently raised his hand on the debate stage and promised he was going to give it away, your health care dollars to illegal immigrants, which is going to bring a massive number of immigrants into our country.”This is misleading. During a June 2019 Democratic primary debate, candidates were asked. €œRaise your hand if your government plan would provide coverage for undocumented immigrants.” All candidates on stage, including Biden, raised their hands. They were not asked if that coverage would be free or subsidized.Biden supports extending health care access to all immigrants, regardless of immigration status.

    A task force recommended that he allow immigrants who are in the country illegally to buy health insurance, without federal subsidies.“Joe Biden claims he has empathy for the vulnerable, yet the party he leads supports the extreme late-term abortion of defenseless babies right up to the moment of birth.”This mischaracterizes the Democratic Party’s stance on abortion and Biden’s position.Biden has said he would codify the Supreme Court’s ruling in Roe v. Wade and related precedents. This would generally limit abortions to the first 20 to 24 weeks of gestation. States are allowed under court rulings to ban abortion after the point at which a fetus can sustain life, usually considered to be between 24 and 28 weeks from the mother’s last menstrual period — and 43 states do.

    But the rulings require states to make exceptions “to preserve the life or health of the mother.” Late-term abortions are very rare, about 1%.The Democratic Party platform holds that “every woman should have access to quality reproductive health care services, including safe and legal abortion — regardless of where she lives, how much money she makes, or how she is insured.” It does not address late-term abortion.PolitiFact’s Daniel Funke, Jon Greenberg, Louis Jacobson, Noah Y. Kim, Bill McCarthy, Samantha Putterman, Amy Sherman, Miriam Valverde and KHN reporter Victoria Knight contributed to this report. Related Topics Elections Health Industry Pharmaceuticals Public Health The Health Law Abortion COVID-19 Immigrants KHN &. PolitiFact HealthCheck Preexisting Conditions Trump Administration Vaccines.

    Who can buy trazodone online

    A 33-year who can buy trazodone online old man was found to have a second SARS-CoV-2 infection some four-and-a-half months after he was diagnosed with his first, from which he recovered. The man, who showed no symptoms, was diagnosed when he returned to Hong Kong after a trip to Spain.I am a virologist with expertise in coronaviruses and enteroviruses, and I’ve been curious about reinfections since the beginning of the pandemic. Because people infected with SARS-CoV-2 can often test positive for the virus for weeks to months, likely due to the sensitivity of the test and leftover RNA fragments, the only way to really answer the question of reinfection is by sequencing the viral genome at the time of each infection and looking for differences in the genetic code.There is no published peer-review report on this man – only a press release from the University of Hong Kong – although reports say the work will be published in the journal Clinical who can buy trazodone online Infectious Diseases. Here I address some questions raised by the current news reports.Why wasn’t the man immune to reinfection?. Immunity to endemic coronaviruses – those that cause symptoms of the common who can buy trazodone online cold – is relatively short-lived, with reinfections occurring even within the same season.

    So it isn’t completely surprising that reinfection with SARS-CoV-2, the virus that causes COVID-19, might be possible.Immunity is complex and involves multiple mechanisms in the body. That includes the generation of antibodies – through what’s known as who can buy trazodone online the adaptive immune response – and through the actions of T-cells, which can help to educate the immune system and to specifically eliminate virus-infected cells. However, researchers around the world are still learning about immunity to this virus and so can’t say for sure, based on this one case, whether reinfection will be a cause for broad concern.[Get the best of The Conversation, every weekend. Sign up for our weekly newsletter.]How different is the who can buy trazodone online second strain that infected the Hong Kong man?. €œStrain” has a particular definition when referring to viruses.

    Often a different “strain” is a virus that behaves who can buy trazodone online differently in some way. The coronavirus that infected this man in Europe is likely not a new strain.A STAT News article reports that the genetic make up of the sequenced virus from the patient’s second infection had 24 nucleotides – building blocks of the virus’s RNA genome – that differed from the SARS-CoV-2 isolate that infected him the first time.SARS-CoV-2 has a genome that is made up of about 30,000 nucleotides, so the virus from the man’s second infection was roughly 0.08% different than the original in genome sequence. That shows that the virus that caused the second infection was new. Not a recurrence of the first virus.The man was who can buy trazodone online asymptomatic – what does that mean?. The man wasn’t suffering any of the hallmark COVID-19 symptoms which might mean he had some degree of protective immunity to the second infection because he didn’t seem sick.

    But this who can buy trazodone online is difficult to prove.I see three possible explanations. The first is that the immunity he gained from the first infection protected him and allowed for a mild second infection. Another possibility is that the infection who can buy trazodone online was mild because he was presymptomatic, and went on to develop symptoms in the coming days. Finally, sometimes infections with SARS-CoV-2 are asymptomatic – at the moment it is difficult to determine whether this was due to the differences in the virus or in the host.What can we say about reinfection based on this one case?. Only that it seems to who can buy trazodone online be possible after enough time has elapsed.

    We do not know how likely or often it is to occur.Should people who have recovered from COVID-19 still wear a mask?. As we are still learning about how humans develop immunity to SARS-CoV-2 after infection, my recommendation is for continued masking, hand hygiene and distancing practices, even after recovery from COVID-19, to protect against the potential for reinfection.Megan who can buy trazodone online Culler Freeman is a Pediatric Infectious Diseases Fellow at the University of Pittsburgh. This article originally appeared on The Conversation and is republished under a Creative Commons license. Read the original here..

    A 33-year old man was found to have a second SARS-CoV-2 infection some four-and-a-half months after he was diagnosed with his first, from online pharmacy trazodone which he recovered. The man, who showed no symptoms, was diagnosed when he returned to Hong Kong after a trip to Spain.I am a virologist with expertise in coronaviruses and enteroviruses, and I’ve been curious about reinfections since the beginning of the pandemic. Because people infected with SARS-CoV-2 online pharmacy trazodone can often test positive for the virus for weeks to months, likely due to the sensitivity of the test and leftover RNA fragments, the only way to really answer the question of reinfection is by sequencing the viral genome at the time of each infection and looking for differences in the genetic code.There is no published peer-review report on this man – only a press release from the University of Hong Kong – although reports say the work will be published in the journal Clinical Infectious Diseases.

    Here I address some questions raised by the current news reports.Why wasn’t the man immune to reinfection?. Immunity to endemic coronaviruses – those that cause symptoms of the common cold – is relatively short-lived, with reinfections occurring even within the same season online pharmacy trazodone. So it isn’t completely surprising that reinfection with SARS-CoV-2, the virus that causes COVID-19, might be possible.Immunity is complex and involves multiple mechanisms in the body.

    That includes the generation of antibodies – through what’s known as the adaptive online pharmacy trazodone immune response – and through the actions of T-cells, which can help to educate the immune system and to specifically eliminate virus-infected cells. However, researchers around the world are still learning about immunity to this virus and so can’t say for sure, based on this one case, whether reinfection will be a cause for broad concern.[Get the best of The Conversation, every weekend. Sign up for our weekly newsletter.]How different is the second strain that infected online pharmacy trazodone the Hong Kong man?.

    €œStrain” has a particular definition when referring to viruses. Often a different “strain” is a virus that online pharmacy trazodone behaves differently in some way. The coronavirus that infected this man in Europe is likely not a new strain.A STAT News article reports that the genetic make up of the sequenced virus from the patient’s second infection had 24 nucleotides – building blocks of the virus’s RNA genome – that differed from the SARS-CoV-2 isolate that infected him the first time.SARS-CoV-2 has a genome that is made up of about 30,000 nucleotides, so the virus from the man’s second infection was roughly 0.08% different than the original in genome sequence.

    That shows that the virus that caused the second infection was new. Not a recurrence of the first online pharmacy trazodone virus.The man was asymptomatic – what does that mean?. The man wasn’t suffering any of the hallmark COVID-19 symptoms which might mean he had some degree of protective immunity to the second infection because he didn’t seem sick.

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    Finally, sometimes infections with SARS-CoV-2 are asymptomatic – at the moment it is difficult to determine whether this was due to the differences in the virus or in the host.What can we say about reinfection based on this one case?. Only that online pharmacy trazodone it seems to be possible after enough time has elapsed. We do not know how likely or often it is to occur.Should people who have recovered from COVID-19 still wear a mask?.

    As we are still learning online pharmacy trazodone about how humans develop immunity to SARS-CoV-2 after infection, my recommendation is for continued masking, hand hygiene and distancing practices, even after recovery from COVID-19, to protect against the potential for reinfection.Megan Culler Freeman is a Pediatric Infectious Diseases Fellow at the University of Pittsburgh. This article originally appeared on The Conversation and is republished under a Creative Commons license. Read the original here..

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