The bird flu virus found in a severely ill patient hospitalized in the US has mutated to become better adapted to human ...

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

The bird flu virus found in a severely ill patient hospitalized in the United States has mutated to become better adapted to ...

Vermont officials reported an H5N1 bird flu outbreak in a backyard flock, leading to the culling of affected birds.

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

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

A backyard flock in Vermont was sickened with H5N1, agricultural officials said on Thursday, following other reports of bird ...

The U.S. isn't fully capturing spread in pets like cats, compared to surveillance for livestock and people, said the study’s ...

The ongoing spread of bird flu in the United States has alarmed experts -- not just because of human cases causing severe ...

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

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

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