Rare but dangerous blood clotting associated with that vaccine as well as AstraZeneca’s had a genetic cause, according to a new paper.

Add Yahoo as a preferred source to see more of our stories on Google. Confusion over vaccine recommendations in the U.S. has hit a boiling point as the responsibility for handling them has spilled ...

One panelist accused the F.D.A. of withholding data on potential harms. The advisers also are reviewing research on vaccines ...

Federal vaccine advisers are reshaping how the United States will approach Covid shots in the coming seasons, shifting from blanket recommendations to a more individualized, risk based strategy. Their ...

You can’t blame this one on the stork. After a brief baby bump early in the COVID-19 pandemic, birth rates in the US and ...