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

Echoing results from earlier California investigations into H5N1 infections in domestic cats, an investigation by agriculture departments in Oregon and Washington has renewed warnings about feeding pets raw food after their investigation into two cat illnesses in Oregon found that the pets were exposed to the same raw pet food brand.

In March 2024, for the first time in the United States, the highly pathogenic avian influenza (HPAI) H5N1 virus was recognized as having crossed over from birds into cattle. Experts believe the virus was transmitted a month or two beforehand from birds to dairy cows in the Texas panhandle,

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

The outbreak of bird flu that began in the United States in 2022 among wild birds and poultry has since spread to dairy cattle, at least one pig, a growing number of people — and even cats.

More than 160 million wild and domestic birds have been infected with bird flu across the United States since 2022.

Avian influenza has been detected in milk from a dairy herd in Maricopa County for the first time since the latest outbreak, according to the Arizona Department of Agriculture. Bird flu is a ...