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

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

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

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

ALEXANDRIA, La. (KALB) - The bird flu virus in a patient in Louisiana has likely mutated while they were in the hospital.

The virus has spread among dairy cattle, humans and other mammals. But officials say the current public health risk is low.

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

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

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

Samples from a hospitalized patient in Louisiana show changes that could make the H5N1 virus spread more easily between ...

A Louisiana woman with the first severe case of bird flu in the US had a mutated form of the disease that may make it more ...

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