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

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

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

In an unprecedented turn of events, H5N1 began infecting dairy cattle for the first time globally in early 2024.

The agency, in its latest update released Thursday, said the mutations were not found in samples taken from wild birds, ...

A sample of the virus found in a critically ill patient in the US has shown signs of mutating to better suit human airways, ...

The CDC warns samples of the bird flu virus show signs of mutations that could make it more transmissible to humans. The CDC says it appears the H5N1 virus contained mutations in the Louisiana patient ...

There's a new concern that the virus could evolve to spread from human to human.

(CNN) — A genetic analysis of samples from the patient in Louisiana recently hospitalized with the country’s first severe ...

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