The BA.2 subvariant of Omicron, which appears to be even more transmissible than Omicron, is accounting for more than a third of global COVID-19 cases. In other news, the U.S. Food and Drug Administration placed limits on the use of GlaxoSmithKline and Vir Biotechnology’s COVID-19 antibody therapeutic, sotrovimab.

COVID vaccine, AstraZeneca

A large study into rare blood clots linked with AstraZeneca’s COVID-19 vaccine found between just one and three cases per million, and only after the first dose, shedding fresh light on the side effects from the shot.

Early in the COVID-19 pandemic, there was a lot of talk about the “new normal,” with most people wanting to get back to the “old normal.” Two-plus years into the pandemic, it’s obvious that COVID-19 is not going away, prompting discussion about what this “new normal” will actually look like.

Misinformation about science is increasingly prevalent and a significant public health threat that the U.S. Food and Drug Administration will focus on fighting, incoming Commissioner Robert Califf said on February 17.

Washington, D.C. will no longer require people show proof of COVID-19 vaccination to enter many businesses beginning on February 15, its mayor said, joining a slew of local leaders who are dialing back pandemic restrictions as the Omicron wave ebbs.

The New York Stock Exchange is withdrawing its mask mandate for fully vaccinated people effective immediately, a source said on February 11, after several large U.S. banks also dropped their mask requirements at their U.S. offices.

Walmart Inc. informed staff on February 11 that fully vaccinated workers in the United States will no longer be required to wear masks in the company’s facilities, effective immediately, unless required by a state or local mandate.

Researchers at Bar-Ilan University and the Galilee Medical Center identified an association between vitamin D deficiency and severity and mortality of COVID-19.

U.S. President Joe Biden on February 10 said mask requirements for children would likely to start to fall away given federal plans to begin vaccinating children under the age of 5, but said it was probably premature to drop COVID mask requirements entirely.

Jane Qiu, a freelance science writer based in Beijing, published an overview of her efforts to investigate the lab-leak theory for the origin of COVID-19. In another update, the FDA’s Vaccines and Related Biological Products Advisory Committee is scheduled to meet on February 15 to discuss an amended Emergency Use Authorization for the Pfizer-BioNTech COVID-19 vaccine for children 6 months through 4 years of age.