A federal vaccine advisory committee has voted to end a longstanding recommendation that all U.S. babies get the hepatitis B vaccine on the day they’re born.

Health Secretary Robert F.

U.S. Health Secretary Robert F.

COVID-19 booster shots are an extra dose of the original vaccine, and some experts wonder why they weren't updated to better match the delta variant.

An influential federal advisory panel has overwhelmingly rejected a plan to give Pfizer booster shots against COVID-19 to most Americans, but it endorsed the extra doses for those who are 65 or older or run a high risk of severe disease.