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

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.

Avian flu concerns are ramping up further in Weld County, after hens at an egg operation with 1.3 million chickens tested ...

State officials have confirmed an avian flu outbreak in Northern Colorado.

Colorado officials declared a disaster emergency after a presumptive bird flu outbreak hit a facility with 1.3 million ...

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

Colorado State University tested samples from the Weld County laying facility and gave presumptive positive results, which ...

A commercial egg laying flock in Colorado and a commercial broiler flock in Maryland are the United States’ most recent ...

As migrating bird populations begin to travel through Colorado during late fall and winter, Colorado Parks and Wildlife expects an increase in wild birds infected with highly pathogenic avian ...