A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the nation’s first severe ...

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

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, ...

A genetic analysis of the bird flu in the body of a Louisiana man who contracted the first severe case found it mutated ...

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

The agency, in its latest update released Thursday, said the mutations were not found in samples taken from wild birds, suggesting the virus changed over the course of the patient’s infection.

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 ...

"This case does not change CDC’s overall assessment of the immediate risk to the public’s health from H5N1 bird flu, which remains low." The CDC notes that this “severe” case in Louisiana ...