Article Summary
Highly pathogenic avian influenza has been confirmed in a commercial laying hen flock of 94,200 birds in Clackamas County, Oregon, marking the first commercial HPAI case in the state since October 2024. The farm has been placed under quarantine following the confirmation by state and federal animal health agencies.
- HPAI confirmed in 94,200 laying hens in Clackamas County, Oregon on November 2
- First commercial poultry HPAI case in more than two years in Oregon
- Farm placed under state quarantine by Oregon state veterinarian
- Previous commercial case occurred October 23, 2024, also in Clackamas County with 150,000 birds
- Backyard poultry flocks have tested positive since then, but do not affect international trade under WOAH rules
KOMO news staff report:
Bird flu has been detected at a commercial poultry facility in Pierce County, the first such detection in Washington this year, state agriculture officials said.
No human cases have been identified at the facility. Public health agencies are monitoring workers who were exposed to infected birds as a precaution. The risk to the general public remains low, officials said.
The affected facility is under quarantine, and disease control measures are underway. Eggs from infected birds will be destroyed and will not enter the food supply.
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An outbreak of highly pathogenic avian influenza virus that nearly wiped out an Illinois farmer’s backyard flock also spread to a domestic cat and wild rats on the farm, an analysis of the animals by the University of Illinois Urbana-Champaign Veterinary Diagnostic Laboratory and the University of Missouri Veterinary Medical Diagnostic Laboratory found.
“Bird flu does not stop at birds. On this farm, a cat and a rat were infected too, most likely after contact with dead or dying infected birds, and any wild animal that scavenges or handles carcasses could be exposed the same way,” said Dr. Leyi Wang, the virology section head at the U. of I. Veterinary Diagnostic Laboratory and corresponding author of the report.
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