Oregon agricultural authorities confirmed highly pathogenic avian influenza (HPAI) in a commercial poultry flock in Clackamas County. The detection prompted quarantine measures and additional biosecurity precautions for poultry operations in the affected area. State officials also confirmed that animals and animal products from the affected farm did not enter the food supply.
Key Takeaways
- Oregon confirmed highly pathogenic avian influenza in a commercial poultry flock in Clackamas County on November 4, 2026
- The confirmation represents the state’s first reported commercial poultry flock case of 2026
- The Oregon Department of Agriculture placed the affected flock under quarantine
- State officials provided an online map to help property owners identify the active quarantine zone
- Products from the affected farm did not enter the food supply, and properly cooked poultry and eggs remain safe to eat
Oregon Confirms Bird Flu in Clackamas County Commercial Poultry Flock
The Oregon Department of Agriculture (ODA) confirmed a highly pathogenic avian influenza infection in a commercial poultry flock in Clackamas County on November 4, 2026. The case is Oregon’s first confirmed HPAI detection in a commercial poultry flock this year.
The department placed the affected flock under quarantine and introduced measures to restrict poultry movement within the designated area. The response is intended to limit potential transmission to other domestic birds and protect nearby poultry operations.
The confirmation involves a commercial poultry facility, where disease-control procedures can affect animal movement, equipment handling and daily farm operations. Poultry producers must follow applicable restrictions while continuing to monitor flock health.
Animal health is one of several concerns affecting Oregon’s agricultural sector. Other livestock producers are managing drought and wildfire costs, which have affected grazing arrangements and feed production in parts of the state.
For poultry owners in Clackamas County, the immediate priority is understanding whether their properties fall within the active quarantine zone. ODA has provided an online map that allows residents and producers to check the geographic boundaries.
Commercial poultry operators and backyard flock owners are also encouraged to follow the department’s biosecurity recommendations, particularly those concerning contact with wild birds, equipment sanitation and flock monitoring.
Laboratory Testing Confirms Highly Pathogenic Avian Influenza
The infection was identified through laboratory testing conducted by Oregon State University’s Oregon Veterinary Diagnostic Laboratory and the U.S. Department of Agriculture’s National Veterinary Services Laboratories.
Samples from the affected flock tested positive at the Oregon Veterinary Diagnostic Laboratory on November 2, 2026. Federal testing confirmed the results on November 4.
The federal confirmation established the presence of highly pathogenic avian influenza in the commercial flock and supported the state’s quarantine response.
HPAI is a contagious viral disease that can cause severe illness and death in poultry. The virus can spread between birds through direct contact and exposure to contaminated materials or environments.
Wild birds, particularly migratory waterfowl, are among the animals associated with the spread of avian influenza. Oregon officials have identified fall and spring migration periods as times when detections tend to increase.
The Clackamas County case concerns one confirmed commercial poultry flock. The announcement does not establish that other commercial operations or backyard flocks in the county are infected.
Nevertheless, poultry owners are advised to monitor their birds for illness and report suspected infections to state animal-health authorities.
Oregon Agriculture Officials Establish Poultry Quarantine Measures
Following confirmation of the infection, Oregon’s state veterinarian placed the affected commercial poultry flock under quarantine.
The measures are intended to restrict the movement of poultry and poultry products within the designated control area. Such restrictions help reduce opportunities for the virus to spread between domestic bird populations.
ODA also made an online map available so property owners can determine whether their locations are included in the active quarantine zone.
The map allows residents to enter their addresses and check whether movement-control requirements apply to their properties. This is particularly relevant for commercial producers and backyard flock owners who may need to transport birds or poultry products.
Quarantine restrictions apply to the designated area rather than automatically covering every property in Clackamas County. Poultry owners should therefore check the official boundaries before making decisions involving bird movement.
The department’s response combines quarantine measures with surveillance and biosecurity guidance. These activities support efforts to identify potential additional infections and limit transmission.
Poultry owners within the restricted area should follow ODA’s instructions and monitor any changes to the active quarantine requirements.
Food Supply Safety and Poultry Product Restrictions
Oregon officials confirmed that none of the animals or animal products from the affected commercial poultry farm entered the food supply chain.
The announcement addresses concerns about whether poultry meat or eggs from the infected operation reached consumers. According to ODA, products from the affected farm were not distributed into the food supply.
The department also stated that properly prepared and cooked poultry meat and egg products remain safe to eat.
Food safety remains relevant throughout Oregon’s agricultural and retail systems, including food distribution through commercial suppliers and local venues such as Portland’s King Farmers Market, where regional producers connect with consumers.
However, the Clackamas County quarantine concerns a specific infected poultry operation and its designated control zone. The confirmation does not indicate that poultry products throughout Oregon’s food supply are affected.
Consumers should continue following standard food-handling procedures, including cooking poultry and eggs thoroughly and cleaning surfaces that come into contact with raw animal products.
For poultry producers, the outbreak creates additional responsibilities concerning animal movement and farm biosecurity. Operators within the active quarantine zone must comply with applicable restrictions regardless of the broader food-safety guidance.
ODA’s confirmation that products from the affected farm did not enter the food supply provides information about the incident while the department continues its animal-health response.
Biosecurity Precautions for Commercial and Backyard Poultry Flocks
The Oregon Department of Agriculture is advising commercial poultry producers and backyard flock owners to maintain biosecurity measures following the Clackamas County detection.
One recommended precaution is preventing contact between domestic poultry and wildlife, especially wild waterfowl. Wild birds can carry avian influenza and may introduce the virus into areas where domestic birds are kept.
ODA also recommends properly cleaning and disinfecting equipment, vehicles and footwear. These precautions can reduce the likelihood of infectious material being carried between locations.
Poultry owners should limit unnecessary visitors, wash their hands before and after handling animals, and change clothing after contact with birds when appropriate.
The department also advises limiting contact between different livestock species, particularly poultry and other animals that may share facilities or equipment.
Monitoring flock health is another part of the response. Owners should watch for signs of illness or unusual deaths and promptly report suspected infections.
Domestic bird illnesses and deaths can be reported to ODA through its animal disease reporting hotline at 503-986-4711.
For sick or dead wild birds, residents should contact the Oregon Department of Fish and Wildlife rather than collecting or handling the animals.
Commercial farms and backyard flocks may differ in size and management practices, but both require precautions to reduce disease exposure.
Poultry owners should also review the current quarantine map and follow applicable state instructions. The combination of movement restrictions, sanitation practices and flock monitoring remains central to Oregon’s response to the confirmed infection.
Frequently Asked Questions
Where Was Bird Flu Confirmed in Oregon?
Highly pathogenic avian influenza was confirmed in a commercial poultry flock in Clackamas County, Oregon, on November 4, 2026. The confirmation was issued by the USDA’s National Veterinary Services Laboratories.
Is the Clackamas County Bird Flu Case Affecting Commercial Poultry?
Yes. The confirmed infection involves a commercial poultry flock. The Oregon Department of Agriculture placed the affected flock under quarantine and established movement restrictions within a designated control zone.
Are Poultry Meat and Eggs Safe to Eat After the Detection?
Oregon officials confirmed that animals and animal products from the affected farm did not enter the food supply. The department also stated that properly prepared and cooked poultry meat and egg products remain safe to eat.
What Quarantine Measures Has Oregon Introduced?
ODA placed the infected flock under quarantine and provided an online map identifying the active control zone. Movement restrictions apply to poultry and poultry products within the designated area.
What Precautions Should Backyard Poultry Owners Take?
Backyard flock owners should limit contact between domestic birds and wildlife, disinfect equipment and footwear, restrict unnecessary visitors and monitor their birds for illness. They should also check the official quarantine map to determine whether movement restrictions apply to their properties.
How Can Poultry Owners Report Suspected Bird Flu?
Oregon poultry owners can report suspected infections, illnesses or unusual deaths in domestic birds to the Oregon Department of Agriculture at 503-986-4711. Sick or dead wild birds should be reported to the Oregon Department of Fish and Wildlife without handling the animals.
