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

A CDC study has found H5N1 bird flu antibodies in veterinarians who had no symptoms and no knowledge they had been working ...

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, ...

The variant of bird flu that killed a Louisiana resident has now been found in dairy cows. Until now, the human cases of bird ...

A sample of milk from a herd of dairy cows in Maricopa County has tested positive for H5N1 avian influenza, or bird flu, according to the Arizona Department of Agriculture.

Health officials have confirmed that bird flu has been detected in milk from a cattle herd at a Phoenix-area dairy facility.

A second type of bird flu has been found in U.S. dairy cows for the first time, the U.S. Department of Agriculture announced.

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

Health officials have confirmed that bird flu has been detected in milk from a cattle herd at a Phoenix-area dairy facility.

Dairy herds in Nevada have been infected by a version of the H5N1 bird flu not previously seen in cows, putting virologists ...

Three veterinarians who work with cows have tested positive for prior infections of H5 bird flu, according to a study ...

Three dairy veterinarians, including one who worked only in states with no known bird flu outbreaks in cows, had recent, ...