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 ...

Dairy cows feed at a dairy farm near Corcoran, Calif. Seven out of 10 herds that have been found to be infected with avian flu are in the state. Avian flu, highly contagious and damaging to poultry ...

Add Yahoo as a preferred source to see more of our stories on Google. Three dairy farms in the Central Valley are being investigated by the California Department of Food and Agriculture over a ...

A new study describes how bird flu has spread between dairy cows and from cows to other mammals. Experts worry the virus is developing new capabilities that could help it evolve to spread from person ...

A small study in Texas suggests that human bird flu cases are being missed on dairy farms where the H5N1 virus has taken off in cows, sparking an unprecedented nationwide outbreak. The finding adds ...

The California Department of Public Health has now confirmed six cases of human bird flu, according to an announcement Friday morning. This announcement of the latest two patients follows the ...

The variant of bird flu that killed a Louisiana resident has now been found in dairy cows. Until now, the human cases of bird flu traced to cattle have been mild, mostly eye infections. But the U.S.