Helen Branswell covers issues broadly related to infectious diseases, including outbreaks, preparedness, research, and vaccine development. Follow her on Mastodon and Bluesky. You can reach Helen on ...

A week of fast-moving developments has left some with questions about access to the COVID-19 vaccine. While experts and officials say the new federal guidance surrounding COVID vaccine authorization ...

EDITOR’S NOTE: This story has been updated to reflect changes to US Centers for Disease Control and Prevention immunization schedules. The US Department of Health and Human Services, under Secretary ...