Science

Oregon logs its first H5N1 case in cows; farmers' union says human avian flu cases underreported in Washington

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 13/11/2026, 15:25:25 UTC.

Briefings

The U.S. Department of Agriculture's Animal and Plant Health Inspection Service (USDA's APHIS) announced the first detection of H5N1 avian flu in a dairy herd in Oregon. This marks the state's initial confirmed case of the virus, which is known to cause severe respiratory illness in humans and can be fatal. The finding highlights ongoing surveillance efforts to track potential human transmission risks from poultry and wild birds.

Key points

• APHIS confirmed the first H5N1 avian flu case in a dairy herd in Oregon, a state that had previously reported no confirmed human cases.
• The virus is highly contagious and can cause severe respiratory illness in humans, potentially leading to death.

Context

This is the first confirmed case of H5N1 avian flu in Oregon, a state that had previously reported no confirmed human cases. The virus is highly contagious and can cause severe respiratory illness in humans, potentially leading to death. Surveillance efforts are ongoing to track potential human transmission risks from poultry and wild birds.

Limitations

The evidence is limited to a single USDA APHIS announcement from early November 2026. No specific dates for the cow's death, the number of infected birds, or the number of human cases are provided. The source does not specify the location of the farm or the number of people at risk.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 13/11/2026, 16:24:45 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

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