WELD COUNTY, Colo. — Egg producers in parts of Weld County will have to stop the movement of their chickens and eggs until further notice after state agriculture officials confirmed an outbreak of highly pathogenic avian influenza in a flock late last month.
The new outbreak, which comes after a relatively quiet year for the H5N1 virus in Colorado, is the first at a commercial egg-laying facility in the county since the summer of 2024 and the fourth across the state so far this year, according to the Colorado Department of Agriculture (CDA).
State agriculture officials told Denver7 they were first notified of a potential outbreak of the highly pathogenic virus on Wednesday of last week, after poultry were found dead at the commercial egg-laying facility where 1.33 million chickens are housed…