Health Services Agency

Date: May 31, 2024
Turlock MAD: David Heft
Phone: (209) 634-1234
East Side MAD: Dr. Wakoli Wekesa
Phone: (209) 522-4098

STANISLAUS COUNTY—East Side Mosquito Abatement Districts (ESMAD) detected West Nile Virus (WNV) ) in mosquitoes collected near Lakewood Ave and Scenic Drive in Modesto. The mosquito samples were collected on May 22, 2024, in a gravid trap placed overnight. This is the first WNVpositive sample detected in Stanislaus County and the north San Joaquin Valley.

So far, 12 WNV-positive mosquito samples and 15 reported dead birds have been collected in several counties statewide, including Fresno in the Central Valley, Alameda, Contra Costa, Santa Clara, and San Mateo along the coast, and Los Angeles, Riverside, and San Diego in Southern California.

Both East Side Mosquito Abatement District and Turlock Mosquito Abatement District (MADs) urge everyone to be vigilant about reporting any standing water to our districts. The 2024 winter season brought lots of rain, even into spring. The only solace this season is the atypical mild temperatures that have persisted into late May. This has helped to keep mosquito activities just below normal. District Managers Wakoli Wekesa and David Heft caution that this may be a lull before the storm; they anticipate an increase in temperatures starting as early as next week and will definitely see an increase in mosquito activities.

The Districts will ramp up their surveillance and control activities, treating mosquito sources and collecting and testing mosquitoes for arboviruses. The Districts anticipate more WNV and mosquitoes in the coming months and would like to remind residents they can help by taking the following precautions:

• Dump or drain standing water. These are places where mosquitoes like to lay their eggs.
• Avoid being outdoors at dusk and dawn. These are the times when WNV-carrying mosquitoes are generally most active.
• Protect yourself against mosquitoes by using repellents containing DEET, Picaridin, or Oil of Lemon Eucalyptus.
• Report Neglected Swimming pools to your local mosquito abatement district.
• Use tight-fitting door and window screens to keep mosquitoes from entering your home.
• Contact your veterinarian for information on vaccinating equine against WNV.

For additional information or to request service, residents should contact their local District:

Stanislaus County residents:

• North of the Tuolumne River contact:
  Eastside Mosquito Abatement District at (209) 522-4098 (www.eastsidemosquito.com)

• South of the Tuolumne River contact:
  Turlock Mosquito Abatement District at (209) 634-1234 www.turlockmosquito.org)