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

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

Tiny genetic alterations could help the bird flu virus enter cells in the upper respiratory tract, the C.D.C. said. But there ...

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

The CDC said Thursday its analysis of samples from a Louisiana patient with bird flu showed mutations not seen in samples ...

The CDC has confirmed a total of 66 human cases of bird flu across the United States as of Friday, although the number is believed to be higher.

The CDC said that testing of a person with a severe case of bird flu indicated the virus had mutated but the risk remains low ...

The CDC has confirmed 65 cases of H5N1 bird flu in humans in 2024. Of those, 39 were associated with dairy herds and 23 with ...

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

The patient was likely infected after having contact with sick and dead birds in a backyard flock, the US Centers for Disease Control and Prevention said earlier this month.