State health, agriculture, and emergency response officials have concluded their coordinated response to the highly pathogenic avian influenza (HPAI) detection at a commercial egg layer operation in Weld County.
This January, the Colorado Department of Agriculture (CDA) has confirmed three new detections of Highly Pathogenic Avian Influenza (HPAI) in backyard flocks in Larimer and Logan Counties and one detection in a commercial egg layer operation in Weld County. All premises are currently under quarantine orders and control areas have been set up in Weld and Logan counties.
In an effort to curb further spread of the HPAI virus and implement additional control measures to protect the dairy and poultry industries and public health in Colorado, the Colorado Department of Agriculture is implementing mandatory statewide surveillance for all Colorado Department of Public Health and Environment (CDPHE) licensed commercial cow dairies. This action will help identify any additional infected dairies with the virus with the goal of preventing further spread of the disease.
The Colorado State Veterinarian’s Office has issued new guidance to minimize influenza transmission at dairy cattle livestock exhibitions.
Yesterday, the Colorado Agricultural Commission approved, and Commissioner of Agriculture Kate Greenberg adopted an emergency rule to help limit the spread of Highly Pathogenic Avian Influenza (HPAI) in Colorado. Since the initial detection of HPAI in dairy cattle in March 2024, the virus has spread to dairies in at least nine states, including Colorado.
Yesterday, the US Department of Agriculture’s (USDA) National Veterinary Services Laboratory (NVSL) confirmed a detection of Highly Pathogenic Avian Influenza (HPAI) H5N1 in dairy cows in Northeast Colorado. This is the first detection of avian influenza diagnosed in cattle in Colorado. Detections of HPAI in dairy cattle have occurred in eight other states.
The US Department of Agriculture’s (USDA) National Veterinary Services Laboratory (NVSL) confirmed a new case of Highly Pathogenic Avian Influenza in a backyard flock in Weld County, Colorado. The flock experienced a high mortality event, losing 20 of 24 chickens in the flock, after exposure to sick and dying wild geese on the premises. The remaining birds in the flock were euthanized.
Today, Colorado State Veterinarian Dr. Maggie Baldwin released the last premises quarantine in Colorado enacted as a result of the highly pathogenic avian influenza (HPAI) outbreak. With the release of the final HPAI quarantine, Colorado has achieved HPAI-free status as designated by the World Organization for Animal Health (WOAH).
Because Highly Pathogenic Avian Influenza (HPAI) continues to present a threat to birds across Colorado, the Colorado State Veterinarian’s office has issued updated guidance for poultry events, such as swaps, meets, and competitions. The guidance asks poultry owners to increase safety precautions and biosecurity practices, monitor their flocks for illness, and report any sick or dead birds to the State Veterinarian’s Office.
The threat of Highly Pathogenic Avian Influenza is still fully present across Colorado and the country. With multiple new detections in Colorado over the past week, the Colorado State Veterinarian’s Office is continuing to promote biosecurity practices as the best method to prevent the introduction of the disease fatal to birds and poultry.