FOR IMMEDIATE RELEASE
August 5, 2026
- Jackson County, Ore.—West Nile virus (WNv) has been detected in mosquitoes collected on August 4th, 2026, from northeast Medford. This is the third time mosquitoes have tested positive for the virus this year. West Nile virus is transmitted between wild birds and certain native mosquito species; however, it can be spread to humans through the bite of an infected mosquito. The mosquitoes were collected and tested by the Jackson County Vector Control District (JCVCD) as part of their annual surveillance program. Mosquito surveillance will remain active and control operations are underway in the area where WNv was detected. Residents are urged to report standing water and mosquito problems to JCVCD by phone at 541-826-2199 or online by visiting https://jcvcd.gov/service-request/.
JCVCD suggests the following to protect against mosquitoes:
- Eliminate or treat sources of standing water around your home
- Avoid outdoor activities at dusk and dawn when mosquitoes are most active
- Use repellants containing DEET, oil of lemon/eucalyptus, or Picardin (always follow label directions)
- Wear long-sleeved shirts and pants when outdoors
- Ensure that screen doors and windows are in good condition and fit tightly
People should consult their health care providers if they experience any flu-like symptoms after exposure to mosquito bites, especially in people over 50 years of age with underlying conditions such as high blood pressure and diabetes. Health care providers can contact Jackson County Health and Human Services for information on WNv testing.
The virus also affects wildlife and domesticated and farm animals. Horse owners should get horses vaccinated for WNv. Horses with neurologic disease should be examined by a veterinarian. WNv testing is available at Oregon State University.
Additional information about West Nile virus:
Oregon Health Authority website:
http://public.health.oregon.gov/DiseasesConditions/DiseasesAZ/WestNileVirus/Pages/survey.aspx
U.S. Centers for Disease Control and Prevention:
http://www.cdc.gov/ncidod/dvbid/westnile/index.htm
We are planning to conduct adult mosquito control treatments on certain routes within the red highlighted areas between dusk to 6 am on 07/15/2026.
