Animal health officials are responding to the first case of a pig in the United States testing positive for high path H5N1 avian influenza. On October 30th USDA confirmed that the first detection in a pig of highly pathogenic H5N1 avian influenza had occurred on a small backyard mixed farm in Oregon that housed poultry, swine, sheep and goats.
Swine Health Information Center Executive Director Dr. Megan Niederwerder notes the investigation was triggered when birds on the farm started showing clinical signs of infection.
Quote-Dr. Megan Niederwerder-Swine Health Information Center:
We know that H5N1 is a specific highly pathogenic avian influenza strain that has really increased with regards to circulation over the last two years. This is primarily maintained in migratory waterfowl but the virus has spilled over into other mammalian species such as seals and sea lions as well as domestic livestock including dairy cattle, first detected in March of 2024 and now in the first pig in October of 2024.