A fourth farm worker has been infected with bird flu in the growing outbreak linked to dairy cows, health officials reported Wednesday. The worker had direct contact with infected dairy cows on a ...

State officials are confirming a suspected outbreak of avian flu among chickens at a large commercial egg farm in Weld County ...

A suspected case of highly pathogenic avian influenza was found at a poultry farm.

In addition to the major outbreak in Colorado, 722,000 birds on a commercial table egg layer farm facility in Lancaster ...

Riverside County health officials confirmed Wednesday that 23 dairy and poultry farms, including one backyard flock, have tested positive for bird flu. Bird flu, or Avian influenza, is a virus that is ...

Egg producers in parts of Weld County will have to stop the movement of their chickens until further notice after the state confirmed an outbreak of avian influenza in a flock late last month.

Colorado quietly flipped into disaster mode Thursday night, after a suspected bird flu outbreak at a massive Weld County egg ...