It was like watching a field hospital on an active battlefront treating hundreds of wounded soldiers,” a livestock veterinarian said.

Keith Poulsen’s jaw dropped when farmers showed him images on their cellphones at the World Dairy Expo in Wisconsin in ...

Federal health officials say that not only has a Louisiana resident contracted the first severe case of bird flu in the U.S., ...

A new bird flu mutation of H5N1 has been discovered in a patient in the US state of Louisiana. Public health officials are ...

The agency, in its latest update released Thursday, said the mutations were not found in samples taken from wild birds, ...

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

There's a new concern that the virus could evolve to spread from human to human.

(CNN) — A genetic analysis of samples from the patient in Louisiana recently hospitalized with the country’s first severe ...

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

ALEXANDRIA, La. (KALB) - The bird flu virus in a patient in Louisiana has likely mutated while they were in the hospital.

The bird flu virus found in a severely ill patient hospitalized in the United States has mutated to become better adapted to ...

The virus has spread among dairy cattle, humans and other mammals. But officials say the current public health risk is low.