Scientists believe the mutations may allow the virus to better bind to receptors in the upper airways of humans.

After someone in southwest Louisiana was hospitalized with a severe case of bird flu, the first such illness reported in the ...

A person in Louisiana has contracted the nation's first severe case of bird flu after the virus mutated inside their body, ...

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

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.

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

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

Yes, pets can get bird flu from eating raw food. Pets can contract bird flu through contact with infected poultry or carcasses, or from eating contaminated food. Since cooking and pasteurization kill ...

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

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

Genetic analysis suggests the bird flu virus has the capacity to mutate in ways that could make it more transmissible to ...