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

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

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

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

It was the fourth instance of H5N1 bird flu in a domestic flock in Vermont since the spring of 2022 and “emphasizes the ongoing need for vigilance as the disease continues to be ...

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

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

A genetic analysis of samples from the patient in Louisiana recently hospitalized with the country’s first severe case of ...

While dogs are not common carriers of bird flu, they can become infected, especially if exposed to sick or dead birds.