Pigeon Fever Cases Identified in Oregon Livestock

Owners of horses and cattle should practice fly control and use separate water buckets to limit infection.

Updated on Oct. 23, 2026 in Large Animals

Pigeon Fever Cases Identified in Oregon Livestock

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Is now a good time to increase safety measures to prevent disease spread among your horses?

Oregon state veterinarians have confirmed and identified new suspected cases of pigeon fever across five counties. The bacterial infection, which causes abscesses in horses and cattle, has resulted in the loss of one horse in Deschutes County.

Why it matters

Pigeon fever can significantly impact animal health and family ranch operations, particularly during the late summer and fall seasons. Understanding how this bacteria spreads is essential for livestock owners to mitigate risks on their property.

Deschutes County currently reports 16 suspected cases and one confirmed case, while Jackson County has six suspected cases and one confirmed case. Crook and Morrow counties each report two suspected cases, with an additional confirmed case identified in Umatilla County.

The players

Oregon State Veterinarians

State officials responsible for monitoring animal health trends and managing disease outbreaks in local livestock populations.

The details

Pigeon fever is a bacterial infection that occurs when bacteria enters an animal's body through broken skin. The condition commonly manifests as abscesses on the chest and belly of horses and cattle. Livestock owners can limit transmission by prioritizing effective fly control measures and ensuring animals use separate, dedicated water buckets.

October 2026: New cases of pigeon fever reported throughout Oregon.
Late summer through fall: Peak season for pigeon fever infection in livestock.

The Home Front

Livestock health management follows established seasonal patterns for bacterial infections like pigeon fever. Managing these risks is a standard part of responsible animal husbandry during the late summer and fall.

Horse and cattle owners should inspect animals regularly for abscesses on the chest or belly area. Minimize the risk of spread by practicing strict fly control and ensuring that each animal uses its own water bucket.

The takeaway

Pigeon fever risk peaks during the fall months, making proactive hygiene essential for herd health. Check your animals for skin abrasions daily and consult your veterinarian immediately if you notice any unusual swelling or abscesses.