Important immune cells survive in the bone marrow of people who were infected with the virus or were inoculated against it, new research suggests.
Japanese Prime Minister Yoshihide Suga extended a state of emergency that includes Tokyo and other major cities, in a last-ditch effort to rein in Covid infections ahead of the capital hosting the Olympics in less than two months.
Australia’s second most populous state of Victoria will enter a one-week COVID-19 lockdown forcing its near seven million residents to remain home except for essential business as authorities struggle to contain a highly-infectious outbreak.
Nearly a year and a half since Covid-19 was detected in the Chinese city of Wuhan, the question of how the virus first emerged remains a mystery.
But in recent weeks the controversial claim that the pandemic might have leaked from a Chinese laboratory – once dismissed by many as a fringe conspiracy theory – has been gaining traction.
We know enough to acknowledge that the scenario is possible, and we should therefore act as though it’s true. Last summer, michael imperiale, a University of Michigan virologist and 10-year member of the National Science Advisory Board for Biosecurity, published an essay on the need to “rethink” some basic research-safety practices in light of the coronavirus pandemic. But he and his co-author—another biosecurity-board veteran—did want to make one thing clear: There was no reason to believe that sloppy or malicious science had had anything to do with the outbreak of the SARS-CoV-2 virus; to suggest otherwise was “more akin to a conspiracy theory than to a scientifically credible hypothesis.”
The source of the coronavirus that has left more than 3 million people dead around the world remains a mystery. But in recent months the idea that it emerged from the Wuhan Institute of Virology (WIV) — once dismissed as a ridiculous conspiracy theory — has gained new credence.
Epidemiology expert Julie Parsonnet warns that COVID-19 vaccine hesitancy has probably made herd immunity unattainable, which makes vaccination all the more important for personal health.
Pfizer’s COVID-19 vaccine was safe and effective in adolescents, with non-inferior immunogenicity compared with a sample of younger adults, according to the first data on the vaccine in this population published in a peer-reviewed journal.
Hundreds of thousands of cruise lovers have signed up to take part in sailings designed to test new health and safety measures. Since March of last year, cruise ships carrying more than 250 people have been prohibited by the Centers for Disease Control and Prevention from sailing in U.S. waters. To start again, they need to follow a complex process that, in some cases, involves simulated cruises designed to test Covid-19 protocols. Hundreds of thousands of frustrated and restless cruise fans have lined up to be guinea pigs.
When the U.S. Centers for Disease Control and Prevention changed its guidelines about mask-wearing on May 13, 2021, plenty of Americans were left a little confused. Now anyone who is fully vaccinated can participate in indoor and outdoor activities, large or small, without wearing a mask or physical distancing.
The country’s declining covid-19 case rates present an unrealistically optimistic perspective for half of the nation — the half that is still not vaccinated. As more people receive vaccines, covid-19 cases are occurring mostly in the increasingly narrow slice of the unprotected population. So The Washington Post adjusted its case, death and hospitalization rates to account for that — and found that in some places, the virus continues to rage among those who haven’t received a shot.
Average daily Covid case counts in the U.S. are at less than half of the level recorded at the start of May, data compiled by Johns Hopkins University shows.
Vaccines from China’s Sinopharm successfully contained Covid-19, according to a study published in a prestigious U.S. medical journal, the first time detailed findings from a late-stage trial of a Chinese shot have appeared in the scientific literature.
Moderna, Inc. (Nasdaq: MRNA), a biotechnology company pioneering messenger RNA (mRNA) therapeutics and vaccines, today announced that the Phase 2/3 study of its COVID-19 vaccine (mRNA-1273) in adolescents has met its primary immunogenicity endpoint, successfully bridging immune responses to the adult vaccination. In the study, no cases of COVID-19 were observed in participants who had received two doses of the Moderna COVID-19 vaccine using the primary definition. In addition, a vaccine efficacy of 93% in seronegative participants was observed starting 14 days after the first dose using the secondary CDC case definition of COVID-19, which tested for milder disease. This study, known as the TeenCOVE study, enrolled more than 3,700 participants ages 12 to less than 18 years in the U.S. The Company plans to submit these data to regulators globally in early June.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine breakthrough infections occur in a small percentage of vaccinated individuals, according to research published in the May 25 early-release issue of the U.S. Centers for Disease Control and Prevention Morbidity and Mortality Weekly Report. [Link to CDC MMWR Report] [Related: Why CDC Changed Its ‘Breakthrough Case’ Definition]
Ischemic stroke was a presenting feature of vaccine-induced thrombosis and thrombocytopenia (VITT) in three patients who received the AstraZeneca COVID-19 vaccine, researchers in England said.
FDA authorized another monoclonal antibody, sotrovimab, for emergency use in COVID-19 patients at high risk of severe disease, the agency announced on Wednesday.
Official Reporting for May 28, 2021
World Health Organization
Confirmed Cases: 168 040 871
Deaths: 1 545 967 545
Confirmed Cases: 169,021,406
Total cases: 33,018,965 (+23,511 New Cases)
Total deaths: 589,547 (+577 New Deaths)
Science and Tech
German researchers on Wednesday said that based on laboratory research, they believed they have found the cause of the rare but serious blood clotting events among some people who received COVID-19 vaccines made by AstraZeneca Plc (AZN.L) and Johnson & Johnson
SARS-CoV-2 variants of concern partially escape humoral but not T-cell responses in COVID-19 convalescent donors and vaccinees – Science
Same-day SARS-CoV-2 antigen test screening in an indoor mass-gathering live music event: a randomised controlled trial – Lancet
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in vaccinated and unvaccinated healthcare personnel in a Veterans Affairs healthcare system – Cambridge Press
Prevalence of Clinical and Subclinical Myocarditis in Competitive Athletes With Recent SARS-CoV-2 Infection – JAMA
Misinformation, Disinformation, and Conspiracy Theories
Cases in the world’s most vaccinated nation are ticking up, forcing researchers to wage war against misinformation on whether jabs are effective.
Coping in 2020 (and probably most of 2021)
Is he embarrassed? Yes. Is he worried about calories? No. Do the employees hate him? Unclear.