Another spillover of the H5N1 bird flu virus from wild birds to dairy cattle appears to have occurred, this time in Arizona.

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 ongoing outbreak of genotype B3.13 of the H5N1 avian flu virus in dairy cows was first detected in March 2024. The first human cases, in farm workers, followed shortly afterward. Official figures ...

After a different strain of bird flu was recently found in cattle for the first time, experts reveal what this means in our fight against the virus.

Avian influenza, commonly called “bird flu,” is a viral infection that spreads in birds, cows and other animals.

Avian influenza, or “bird flu,” is a disease caused by influenza A viruses that spread widely among wild birds, and can cause outbreaks in commercial and backyard poultry flocks. Though there ...

A new study published Thursday by the Centers for Disease Control and Prevention shows that bird flu has silently spread from ...

CDC finds H5 bird flu antibodies in 3 veterinary practitioners, highlighting need for enhanced surveillance and safety protocols.

A new study published by the U.S. Centers for Disease Control and Prevention shows that the H5N1 bird flu virus is likely ...

The Ohio Department of Health (ODH) recently reported the state's first probable human case of bird flu in an adult male farmer from Mercer County.

The report is the latest evidence that the outbreak in dairy herds is spreading undetected in cows, and the spillover into ...