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

The ongoing spread of bird flu in the United States has alarmed experts -- not just because of human cases causing severe ...

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.

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

The CDC said Thursday its analysis of samples from a Louisiana patient with bird flu showed mutations not seen in samples ...

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 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.

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

Connecticut has not been spared from the ongoing bird flu outbreak that has primarily been impacting livestock.

It’s safe to drink pasteurized milk but people run a high risk if they drink raw milk” — Linda Pinfold, agricultural ...

Health experts said while the new finding is concerning, it is not a cause for alarm as the virus has been causing sporadic, ...