The US Department of Agriculture this week posted an unpublished version of its genetic analysis into the spillover and spread of bird flu into US dairy cattle, offering the most complete look yet at ...

Strong genetic evidence makes it highly likely that a dairy farm worker in Texas contracted avian influenza A (H5N1) from cattle, according to a detailed case report from the CDC and Texas Department ...

Add Yahoo as a preferred source to see more of our stories on Google. In early March, Dr. Barb Petersen, a large-animal vet in Texas, began getting calls from the dairy farms she works with in the ...

H5N1 bird flu is branching out. New data from the Centers for Disease Control and Prevention indicates that a second type of H5N1 has likely spread from dairy cows to humans. The CDC and health ...

Officially, there is only one documented case of bird flu spilling over from cows into humans during the current U.S. outbreak. But epidemiologist Gregory Gray suspects the true number is higher, ...

The highly pathogenic avian influenza H5N1 virus that spilled from wild birds into US dairy cows late last year may have recently seeped from a dairy farm in Colorado to a nearby poultry farm, where ...

Avian influenza has raged through Michigan's bird population for two years, forcing commercial farmers and people with backyard coops to kill nearly 6.8 million infected chickens and turkeys, ...

A Michigan dairy farmworker is the second person in the U.S. to contract avian influenza from a cow, state health officials said Wednesday. The worker, a man, developed conjunctivitis, which is an eye ...