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

Avian influenza has been detected in milk from a dairy herd in Maricopa County, according to the Arizona Department of ...

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

Milk from every dairy in Arizona has been tested for avian flu at least once since January, but this week was the first time ...

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.

The strain of bird flu is distinct from what has previously been found in dairy cattle. The finding raises some worrying ...

Dairy cows in Nevada have been infected with a new strain of bird flu virus different from the one circulating in other herds ...

Dairy cattle in Nevada have been infected with a new type of bird flu that's different from the version that has spread in ...