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

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

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

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

A backyard flock in Vermont was sickened with H5N1, agricultural officials said on Thursday, following other reports of bird ...

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

A genetic analysis of samples from the patient in Louisiana recently hospitalized with the country’s first severe case of ...

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Follow Newsweek's live blog for ...

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

The Centers for Disease Control and Prevention (CDC) has identified mutations in a strain of the avian influenza virus H5N1, ...