Here’s what to know about the United States’ first confirmed severe case of H5N1 avian influenza—and how to protect yourself.

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

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

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

The CDC's analysis revealed changes in the hemagglutinin (HA) gene, a critical component for the virus's ability to attach to ...

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

The CDC warns samples of the bird flu virus show signs of mutations that could make it more transmissible to humans. The CDC ...

One of the mutations was also seen in a sample from a British Columbia teenager who was hospitalized with bird flu, the CDC ...

Dr. Andrew Pekosz from Johns Hopkins discusses the CDC’s discovery of mutations in the bird flu virus linked to the first severe human case in the U.S. and its risks ...

The Centers for Disease Control and Prevention (CDC) has identified mutations in the H5N1 bird flu virus that may increase ...

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 updates.