Robert Gerhardt | Dreamstime.com
The U.S. Department of Agriculture (USDA) and Oregon state veterinary officials are investigating positive cases of H5N1 in a backyard farming operation in Oregon that has a mix of poultry and livestock, including swine. The Oregon Department of Agriculture announced on October 25, that poultry on this farm represented the first H5N1 detection in Crook County, Oregon. On October 29, the USDA National Veterinary Services Laboratories also confirmed one of the farm’s five pigs to be infected with H5N1, marking the first detection of H5N1 in swine in the United States.