Vaccines are key to China’s zero-Covid exit but scepticism poses challenge Backing down from existing policies remains a political problem of the first order the Guardian

...

U.S. FDA authorizes Moderna, Pfizer updated COVID boosters for 6 months old The U.S. Food and Drug Administration on Thursday authorized updated COVID-19 booster shots from Moderna and Pfizer and its partner BioNTech for children as young as 6 months of age. Reuters Reuters

...

Omicron boosters are weaker against BQ.1.1 subvariant that is rising in U.S., study finds

Covid shots designed to protect against the omicron variant trigger a weaker immune response against the rapidly emerging BQ.1.1 subvariant than the previously dominant strain, according to a new lab study.

Scientists at the University of Texas Medical Branch, in a study published online Tuesday in Nature Medicine, found that the booster shots performed well against the BA.5 subvariant they were designed to target.