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

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

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

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Follow Newsweek's live blog for ...

The Centers for Disease Control and Prevention (CDC) has identified mutations in a strain of the avian influenza virus H5N1, ...

Connecticut has not been spared from the ongoing bird flu outbreak that has primarily been impacting livestock.

After Gov. Gavin Newsom last week declared an emergency stemming from bird flu’s spread in dairy herds, local public health ...

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

The US hasn’t learned lessons from the Covid-19 pandemic that it could use to mitigate the threat of pathogens like H5N1 bird ...

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

Scientists are issuing warnings after a bird flu patient showed mutations that could increase the transmission of the virus.