Arizona agricultural officials say they now have the first detection of H5N1 avian influenza in milk produced by a dairy herd within the state.

The same genotype was detected in a severe human case that resulted in the United States’ first bird flu-related death.

The CDC reported the United States’ first-ever human case of H5N1 in ... since the virus is adapting to new hosts like cows and other mammals. “If a version of bird flu had a gene mutation ...

As cases of seasonal influenza surge, health officials are closely monitoring a growing threat—the potential fusion of human ...

Blood testing of large-animal veterinarians suggests that H5N1 bird flu has spread more widely than US surveillance of the virus is capturing, according to a new study by federal and state disease ...

Before future studies would uncover a link between Nipah outbreaks and the felling of native forests for the purposes of ...

The recent silencing of communications from the U.S. Centers for Disease Control and Prevention by the Trump administration is worrisome.

A dairy worker in Nevada has been infected with a strain of H5N1 bird flu—genotype D1.1—that has newly spilled over to cows, ...

A second subtype of H5 bird flu, known as D1.1, was detected in dairy cattle and infected one worker in the US state of ...

The authors identified four anchor antibodies encoded by diverse germline genes with broad neutralizing ... In response to the emergence of H5N1 influenza A viruses as a novel pathogen of cattle ...

More than 80 domestic cats have been confirmed to have had bird flu since 2022. Experts say there's a risk that cats could ...

This version of the virus is circulating broadly in wild birds and is different from the virus that has been causing dairy ...