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Eastvale Mosquito Sample Tests Positive for West Nile Virus


September 26, 2023


Eastvale Mosquitoes Test Positive for West Nile Virus


Eastvale, California- Northwest Mosquito and Vector Control District (NWMVCD) recently reported detections of  West Nile Virus in the City of Eastvale. Detections of West Nile virus were found in 17 dead birds and 8 mosquito samples throughout the city.


West Nile virus is transmitted through the bite of an infected mosquito, infecting approximately 20% of humans with mild symptoms such as fever, headaches. and body aches. Less than 1% of of individuals develop serious neurological illness. Anyone with symptoms should contact their healthcare provider.

At this time, the City of Eastvale and Jurupa Community Services District are working with NWMVCD to educate residents on virus symptoms, transmission, source reduction, and prevention. NWMVCD also recently performed wide area adult mosquito control treatment between the areas of Scholar Way, the 15-freeway, Riverboat Drive, and Limonite Avenue to lower the mosquito population affecting residential areas.


The district treated these areas with Aqua-Reslin (EPA Reg. # 432-796) due to the increased West Nile virus activity. NWMVCD's primary focus is the treatment of immature mosquito larvae which happens in stagnant water. Residents are advised to dump any standing water on their property to limit mosquito breeding.


In the meantime, the City of Eastvale, the Jurupa community Services District and Northwest Mosquito and Vector Control District urge you to protect yourself from mosquito bites using the following methods:

  1. Use insect repellent: Use a Center for Disease Control approved insect repellent such as DEET, picaridin, IR3535, and oil of lemon eucalyptus. Make sure to use insect repellents according to the product label.
  2. Dawn and dusk: Dawn and Dusk are peak mosquito-biting times for many mosquitoes. Consider rescheduling outdoor activities to avoid those times.
  3. Clothing: Wearing long sleeves, long pants, and socks when outdoors can reduce exposure to mosquito bites.

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Media Contact:

Eric Ballejos | Public Information and Technology Officer | 951.340.9792 |

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