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

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.

As the CDC is tracking mutations in the bird flu virus that may make it easier for the infection to be spread from person to ...

A new mutation and the first severe case of H5N1 bird flu discovered in a human in Louisiana has raised concern among some ...

Cases of a potentially lethal fungal disease susceptible to extreme weather and often misdiagnosed rose in Monterey County ...

Gavin Newsom declared a state of emergency on Wed. in response to the bird flu outbreak affecting dairy herds. Find out more about the rising cases, its symptoms, and other details below. California ...

Northwest Naturals says a batch of Feline Turkey Recipe tested positive for bird flu. One cat has died in connection with the ...

The agency, in its latest update released Thursday, said the mutations were not found in samples taken from wild birds, suggesting the virus changed over the course of the patient’s infection.

Health experts are now warning pet owners to be cautious about raw foods and limit pets' exposure to wildlife.

Health authorities have revealed that the bird flu virus mutated inside a Louisiana patient who contracted the first severe ...

A Louisiana woman with the first severe case of bird flu in the US had a mutated form of the disease that may make it more ...

Disturbing conclusion reached over Louisiana woman taken ill with first severe case of H5N1 virus, as ‘pandemic clock is ...