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The E.U. will no longer recommend that masks be required for air travel.


11 May 2022

The European Union will no longer recommend that member states require face masks on planes and in airports, two E.U. agencies announced on Wednesday, ending a guideline that had been in place for nearly two years as countries across the bloc lift Covid restrictions.


Intranasal proteins could protect against COVID-19 variants


10 May 2022

New SARS-CoV-2 variants continue to evolve and prolong the COVID-19 pandemic. The surface of SARS-CoV-2, the virus that causes COVID-19, is covered with spike proteins. These latch onto ACE2 receptors on human cells, allowing the virus to enter and infect the cells. Mutations in spike allow the virus to evade the immune system as well as therapies designed to target it.


Death Toll During Pandemic Far Exceeds Totals Reported by Countries, W.H.O. Says


06 May 2022

Nearly 15 million more people died during the first two years of the pandemic than would have been expected during normal times, the organization found. The previous count of virus deaths, from countries’ reporting, was six million.


A New Covid Mystery Why haven’t cases started rising again in the U.S.?


06 Apr 2022

To many people’s surprise — including mine — new Covid-19 cases in the U.S. have not begun to rise. Over the past two weeks, they have held roughly steady, falling about 1 percent, even as the highly contagious BA.2 subvariant of Omicron has become the dominant form of Covid in the U.S. Across much of Europe, by contrast, cases surged last month after BA.2 began spreading there, and many experts expected a similar pattern here. That hasn’t happened. “It has not taken off,” Michael Osterholm, a University of Minnesota epidemiologist, told me.


COVID-19 takes serious toll on heart health—a full year after recovery


25 Mar 2022

From very early in the pandemic, it was clear that SARS-CoV-2 can damage the heart and blood vessels while people are acutely ill. Patients developed clots, heart inflammation, arrhythmias, and heart failure. Now, the first large study to assess cardiovascular outcomes 1 year after SARS-CoV-2 infection has demonstrated that the virus’ impact is often lasting. In an analysis of more than 11 million U.S. veterans’ health records, researchers found the risk of 20 different heart and vessel maladies was substantially increased in veterans who had COVID-19 1 year earlier, compared with those who didn’t. The risk rose with severity of initial disease and extended to every outcome the team examined, including heart attacks, arrhythmias, strokes, cardiac arrest, and more. Even people who never went to the hospital had more cardiovascular disease than those who were never infected.




Articles


Four Vaccine Doses Prevented Severe Omicron COVID-19 Better Than 3


10 May 2022

Older patients in Israel who received a fourth dose of the BNT162b2 (Pfizer-BioNTech) SARS-CoV-2 vaccine were more than 3 times less likely to develop severe COVID-19 than those who received only 3 doses. But while protection against severe disease did not wane during the testing period, protection against confirmed infection appeared short-lived.




Rates of COVID-19 Among Unvaccinated Adults With Prior COVID-19


20 Apr 2022

Risk of SARS-CoV-2 reinfection among unvaccinated people with prior COVID-19 is a subject of debate.1,2 We performed a survival analysis in a large US population to assess the degree and duration of protection associated with natural immunity in unvaccinated individuals.




Myocarditis Adverse Event Less Common After COVID-19 Vaccine Booster


12 Apr 2022

The risk of adolescents developing myocarditis is lower after a booster dose of the BNT162b2 (Pfizer-BioNTech) COVID-19 vaccine than after the second dose, according to a CDC analysis of data from the Vaccine Adverse Event Reporting System (VAERS). Myocarditis is a rare but serious adverse event associated with COVID-19 mRNA vaccination. To assess whether this adverse event was also associated with booster doses administered to adolescents, the authors analyzed reports submitted to the VAERS system and v-safe between December 9, 2021, and February 20, 2022.




Even Mild COVID-19 May Change the Brain


23 Mar 2022

Alarge study comparing brain scans from the same individuals before and after SARS-CoV-2 infection suggests that brain changes could be a lingering outcome of even mild COVID-19. Writing in Nature, researchers at Oxford University’s Wellcome Centre for Integrative Neuroimaging reported that several months after study participants had SARS-CoV-2 infections, they had more gray matter loss and tissue abnormalities, mainly in the areas of the brain associated with smell, and more brain size shrinkage than participants who hadn’t been infected with the virus.




Risks and burdens of incident diabetes in long COVID: a cohort study


21 Mar 2022

Background There is growing evidence suggesting that beyond the acute phase of SARS-CoV-2 infection, people with COVID-19 could experience a wide range of post-acute sequelae, including diabetes. However, the risks and burdens of diabetes in the post-acute phase of the disease have not yet been comprehensively characterised. To address this knowledge gap, we aimed to examine the post-acute risk and burden of incident diabetes in people who survived the first 30 days of SARS-CoV-2 infection. Interpretation In the post-acute phase, we report increased risks and 12-month burdens of incident diabetes and antihyperglycaemic use in people with COVID-19 compared with a contemporary control group of people who were enrolled during the same period and had not contracted SARS-CoV-2, and a historical control group from a pre-pandemic era. Post-acute COVID-19 care should involve identification and management of diabetes.




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