Until last week, all bird flu in dairy herds had been identified as the B3.13 variant, which was believed to have come from ...

Pennsylvania has become the first major dairy producing state to achieve HPAI-free status from the USDA for its milk supply.

Officials say no avian influenza infections in dairy cattle or humans have been detected in Pennsylvania to date.

Neither of the two strains of avian influenza that have infected dairy cows in the United States have been detected in the ...