The U.S. hasn’t learned lessons from the COVID-19 pandemic that it could use to mitigate the threat of pathogens like H5N1 ...

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 ...

Bird flu could be mutating to become more transmissible to humans, scientists have warned, as the US reported its first ...

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.

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.

The CDC recently reported findings from an analysis of specimens collected from the patient in Louisiana who became severely ill from H5N1 avian flu, and found genetic mutations that, according to ...

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

“The changes observed were likely generated by replication of this virus in the patient with advanced disease rather than ...

Flu watchers say they'll continue to keep a close eye on the pandemic potential of the H5N1 strain of avian influenza in 2025. The virus continues to spread among U.S. dairy cattle and decimate ...

Although human infections in the United States have been rare, according to the CDC, bird flu has infected 60 people since April. Bird flu is a disease caused by a family of flu viruses primarily ...