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 ...

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 ...

H5N1 bird flu samples collected from a severely ill patient in ... One of the mutations was also seen in a sample from a ...

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

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.

Public health officials have just reported the first known “severe” case of bird flu in the United States. There are now 61 ...

Genetic analysis of H5N1 bird flu viruses from a severely ill patient in Louisiana revealed multiple mutations that may ...