An official website of the State of Oregon
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Birds are a natural host for West Nile virus; in Oregon particularly crows, ravens, jays, magpies, and sage grouse. A large or continuous die-off of birds may be a local indicator of WNV activity.
Contact one of the following Oregon agencies for collection and testing for West Nile virus surveillance:
Veterinarians are required to report horses with the appropriate clinical signs. Refer to West Nile Virus testing for further information and contact the Oregon Dept. of Agriculture at 503-986-4760 before submitting horse samples.
Any other animal suspected of having West Nile virus or other viruses carried by mosquitoes will be tested at a laboratory. If you have any questions, please call the state public health epidemiologist on call at Oregon Health Authority, Public Health Division, 971-673-1111.
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