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

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 ...

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

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

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

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

The ongoing spread of bird flu in the United States has alarmed experts — not just because of human cases causing severe illness, but also due to troubling new instances of infections in cats. A ...

A person in Louisiana has the first severe illness caused by bird flu in the U.S., the Centers for Disease Control and Prevention announced Wednesday. Officials determined the patient had exposure ...

There have been 61 reported human cases of bird flu reported in the U.S. since April, according to CDC data. Almost all confirmed cases have had direct contact with infected cattle or infected ...