A new variant of the bird flu has infected a dairy worker in Nevada marking the state's first human case of the H5N1 avian influenza.

H5N1 bird flu is branching out. New data from the Centers for Disease Control and Prevention indicates that a second type of ...

Most of Trump’s health picks are uninterested in using most of the tools that can limit the spread of infectious disease.

The flu is walloping every corner of Massachusetts in an unusual second surge of the season, with people reporting flu-like ...

The recent silencing of communications from the U.S. Centers for Disease Control and Prevention by the Trump administration is worrisome.

When H5N1 first came to the attention of infectious disease professionals 20 years ago, there was concern it could mutate and ...

Yahoo News provides the latest updates on the spread of bird flu in the U.S., and its effect on rising egg prices and ...