AstraZeneca’s vaccine comes with a slightly higher risk of a nerve syndrome but not worse than from Covid, a study finds.

BY BENJAMIN MUELLER | NYTimes Health | Disclosure

Moderna’s Covid vaccine produces a strong immune response in younger children, the company said.

BY APOORVA MANDAVILLI | NYTimes Health | Disclosure

Some federal advisers have misgivings over whether boosters are widely needed.

BY APOORVA MANDAVILLI | NYTimes Health | Disclosure

Are Vaccine Boosters Widely Needed? Some Federal Advisers Have Misgivings

BY APOORVA MANDAVILLI | NYTimes Health | Disclosure

Coronavirus vaccines should begin soon for children 5 and up.

BY RONI CARYN RABIN | NYTimes Health | Disclosure

Here’s what you need to know to navigate the C.D.C.’s new mix-and-match vaccine strategy.

BY APOORVA MANDAVILLI | NYTimes Health | Disclosure

A limited C.D.C. study finds no significant change in hospitalization outcomes during the U.S. Delta wave.

BY BENJAMIN MUELLER | NYTimes Health | Disclosure