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 Portland-based pet food company issued a nationwide voluntary recall after a house cat in Oregon died from eating one of ...

H5N1 outbreaks have led to the losses of commercial flocks in Barron, Trempealeau, Washburn and other Wisconsin counties.

Northwest Naturals announced a voluntary pet food recall after an Oregon house cat died after eating a Northwest Naturals ...

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

California officials have declared a state of emergency over the spread of bird flu, which is tearing through dairy cows in ...