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West Nile Virus Update- August 8, 2022

WNV Update_08092022

Santa Fe Springs, CA (August 8, 2022) – The Greater Los Angeles County Vector Control District (GLACVCD/District) has confirmed 28 additional mosquito samples that tested positive for West Nile virus (WNV). This brings the total number of positive samples within the District’s service area to 63 this year. The new positive samples were collected from 11 different communities: Artesia, Cerritos, Hawaiian Gardens, La Habra Heights, Long Beach, Porter Ranch, Rowland Heights, San Fernando, Santa Fe Springs, South Whittier, and Tarzana.  

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West Nile virus is endemic to Los Angeles County, and warm temperatures can increase virus activity and mosquito populations. Visit VectorSurv Maps or for a comprehensive look at this year’s West Nile virus activity throughout Los Angeles County and Southern California.

“Mosquitoes can complete their life cycle in less than a week in a water source as small as a bottle cap,” said Mary-Joy Coburn, GLACVCD’s director of communications. “We urge all Angelenos to conduct routine property inspections for mosquito breeding sources, or contact the District to inspect and treat the source.”  

  • Mosquito control is a shared responsibility and residents must take an active role in reducing the threat of WNV in their neighborhoods by taking these additional steps:
  • Eliminate standing water in clogged rain gutters, rain barrels, discarded tires, buckets, watering troughs, or anything that holds water for more than a week.
  • Change the water in pet dishes, bird baths, and other small containers weekly.
  • Wear EPA-registered and CDC-recommended insect repellent when outdoors where mosquitoes may be present.
  • Report neglected (green) swimming pools in your neighborhood to your vector control district.
  • Share this information with your community to decrease mosquito populations.

For more information, residents can contact the Greater Los Angeles County Vector Control District at 562-944-9656, online at, or on social media: FacebookTwitterInstagram


Media Contacts

Diana Garcia, Community Liaison | | 562-967-9060

Mary-Joy Coburn, Director of Communications | | 562-944-9656