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

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.

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 test turned up positive.

Bird flu was recently detected in milk produced by an Arizona dairy herd for the first time, officials announced Friday.

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

With threats of avian flu and lead poisoning, biologists are working overtime to care for a species that nearly went extinct.

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

A dairy facility in Maricopa County has been placed under quarantine after avian flu was detected in its milk supply, the agriculture department said.