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

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

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

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

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

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

Earlier in December, officials announced an elderly Louisiana patient was in “critical condition” with a severe H5N1 ...

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

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

America is heading into an even higher-risk period as the seasonal flu begins to circulate. This also raises a question of ...