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

A new mutation and the first severe case of H5N1 bird flu discovered in a human in Louisiana has raised concern among some ...

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

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

Growing concerns surrounding the transmission of H5N1 bird flu. The CDC reports that samples collected from a severely ill ...

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

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

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

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 has declared the first “severe” case of H5N1 bird flu in the U.S., according to a press release published Wednesday.

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