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

Growing concerns surrounding the transmission of H5N1 bird flu. The CDC reports that samples collected from a severely ill ...

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 CDC has confirmed a total of 66 human cases of bird flu across the United States as of Friday, although the number is ...

The U.S. Centers for Disease Control and Prevention said on Thursday its analysis of samples from the first severe case of ...

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

Tiny genetic alterations could help the bird flu virus enter cells in the upper respiratory tract, the C.D.C. said. But there ...

The LA County Department of Public Health confirmed the first human case of bird flu in the county, just days after Gov.

At least 65 human cases of H5 bird flu have been confirmed this year, with the majority being detected in California.

A human case of H5 bird flu has been confirmed in Los Angeles County, officials announced on Monday. According to the Los ...

The case comes less than a week after Gov. Gavin Newsom called a state of emergency over the spread of bird flu virus in the ...

According to the Los Angeles County Department of Public Health, the patient was an adult exposed to livestock infected with ...