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.

Officials have wrapped up their emergency response after a verbal disaster declaration was issued in January for an outbreak of highly pathogenic avian influenza in Weld County.

A massive culling operation at an egg-laying facility in Weld County earlier this month did not lead to new cases of highly ...

Millions of birds, including 1.3 million commercial table egg layers in Weld County, Colorado, have been sickened with highly pathogenic avian influenza, per this week’s notifications from the US ...

One of six geese found dead in and around Heckscher Park in January is likely positive for highly pathogenic avian influenza ...

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