Although the avian flu (H5N1) virus may not be making the news as frequently, it is still working hard behind the scenes, ...

New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

The U.S. Centers for Disease Control and Prevention ended its emergency response for bird flu as the outbreak that sickened ...

Experts urge U.S. to prepare for possible new pandemic as H5N1 bird flu outbreak spreads with dairy animal and human cases. Here's what to know.

According to the CDC, Bird flu is a disease caused by avian influenza A viruses that usually spread between birds, not people. Most human cases of bird flu in the U.S. have been mild so far, ...

The mutations in the bird flu, or H5N1, viruses that caused severe infections in British Columbia and Louisiana both occurred in a protein on the surface of the virus that allows it to attach to ...

The growing warnings about the avian flu, also known as H5N1 or H5N9 flu, have led the public to question whether the infection can be spread to humans through eating eggs or chicken.. Here's what ...

Experts urge U.S. to prepare for possible new pandemic as H5N1 bird flu outbreak spreads with dairy animal and human cases. Here's what to know.