With mosquito control agencies and local county health departments around the state, Oregon Health Authority is testing adult mosquitoes and birds for mosquito-borne encephalitis.
Annual Summary Reports
Oregon 2011 West Nile Virus Summary Report
Oregon 2010 West Nile Virus Summary Report
Oregon 2009 West Nile Virus Summary report
Oregon 2008 West Nile Virus Summary report
Oregon 2007 West Nile Virus summary report
Oregon 2006 West Nile Virus summary report
Oregon 2005 West Nile Virus summary report
Oregon 2004 West Nile Virus summary report
Oregon Health Services has stepped up its surveillance of mosquito-borne encephalitis. We are encouraging physicians, veterinarians, diagnostic laboratories and other health care providers to assist in this effort.
I found a single dead or ill bird--what do I do?
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. Call one of the following agencies for collection and testing for West Nile virus surveillance.
Oregon mosquito control agencies (PDF)
Oregon county health departments
Oregon county contacts for WNV
Oregon Fish and Wildlife: 503-947-6322 (fax 503-947-6330)
I suspect I have a horse with WNV infection--what do I do?Veterinarians are required to report horses with the apppropriate clinical signs. Refer to the
WNV testing page for further information and contact the Oregon Dept. of Agriculture at 503-986-4760 before submitting horse samples.
Are other animals tested for WNV?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 Department, 971-673-1111.
