Robert F. Kennedy Jr. petitioned the F.D.A. to revoke authorization of the shots at a time when they were in high demand and ...

Since early 2024, the U.S. has logged 66 human cases of H5N1. Scientists are keeping a watchful eye on the virus’s spread as we enter a new year.

Trump's pick for health secretary has a record of attacking vaccines. In fact he's even taken direct aim at bird flu shots.