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

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

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

A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the first severe case of the ...

A person in Louisiana contracted the nation's first serious human case of avian influenza, or bird flu, and was admitted to the hospital in recent days, according to the Centers for Disease ...

Nearly a year into the first outbreak of the bird flu among cattle, the virus shows no sign of slowing. The U.S. government failed to eliminate the virus on dairy farms when it was confined to a ...

Bird flu, also called avian influenza, is a viral infection that can cause flu in birds and sometimes spread to mammals, including humans. Migrating waterfowl (wild ducks, geese, and storks ...

California is in a state of emergency due to a recent bird flu outbreak. As residents grapple with the news, many are learning more about the virus — how to look for signs and symptoms and where ...