Equine Alerts

West Nile Virus in Oregon

Oregon has no recent West Nile Virus activity, but 5 alerts have been recorded historically.

Risk Level
🟢 Low
No cases reported in the past 30 days
Cases (30 days)
0
Total Cases
5
Counties Affected
3

Most recent West Nile Virus alert in Oregon: Aug 31, 2026

West Nile Virus Alerts in Oregon

Malheur, Oregon
Aug 31, 2026 · active
1
confirmed
Union, Oregon
Aug 14, 2026 · active
1
confirmed
Lake, Oregon
Oct 9, 2025 · active
1
confirmed
Lake, Oregon
Oct 7, 2025 · active
1
confirmed
Malheur, Oregon
Aug 22, 2024 · active
1
confirmed

About West Nile Virus

Mosquito-borne virus causing neurological disease

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