On Nov. 17, 2023, the Oregon Department of Agriculture reported that the United States Department of Agricultureﾒs National Veterinary Services Laboratoryconfirmed the presence of highly pathogenic avian influenza (HPAI) in two commercial poultry operations and two backyard flocks.

The commercial operations are in Linn and Marion County. The backyard flocks are in Deschutes and Marion. Approximately 790,000 birds from the affected flocks were euthanized to prevent the spread of the disease and did not enter the food system.