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

As flu season ramps up in the U.S., influenza is not as simple as it first appears, with several different strains in play.

As Mark McAfee — the maverick leader of California’s largest raw milk dairy — works on getting his Fresno County dairy out of ...

Our attempts to educate people that there could be a risk from raw milk of avian flu seems to have been countered by” ...

Avian influenza has spread far beyond the nation's birds, infecting all manner of creatures from zoo animals, wild mammals, ...

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

A genetic analysis of viral samples from a patient in Louisiana hospitalized with the first severe case of bird flu showed ...

Samples from a hospitalized patient in Louisiana show changes that could make the H5N1 virus spread more easily between ...

The patient was likely infected after having contact with sick and dead birds in a backyard flock, the US Centers for Disease Control and Prevention said earlier this month.

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