After someone in southwest Louisiana was hospitalized with a severe case of bird flu, the first such illness reported in the ...

The CDC said Thursday its analysis of samples from a Louisiana patient with bird flu showed mutations not seen in samples ...

A person in Louisiana has contracted the nation's first severe case of bird flu after the virus mutated inside their body, ...

Scientists believe the mutations may allow the virus to better bind to receptors in the upper airways of humans.

Public health officials reported the first case of bird flu in a person in Stanislaus County this year. Not everyone enjoyed ...

A backyard flock in Vermont was sickened with H5N1, agricultural officials said on Thursday, following other reports of bird ...

H5N1 bird flu has been spreading across the world, recently making its way to birds in Arizona, but what does that mean for ...

The manufacturer of a popular pet food brand has issued a recall of its raw and frozen cat food, according to the Washington ...

The Michigan Department of Agriculture and Rural Development has confirmed another instance of a highly contagious bird flu ...

Bird flu has been spreading for years in wild birds, chickens, turkeys and many other animals. It was first confirmed in U.S.

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Newsweek's live blog is closed.

The ongoing spread of bird flu in the United States has alarmed experts -- not just because of human cases causing severe ...