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NewsNBC 7 San Diego — Local NewsJuly 3, 2026San Diego

West Nile Virus Detected in San Carlos Mosquitoes

San Diego County officials have confirmed the presence of West Nile virus in mosquitoes near the San Carlos neighborhood. Residents are advised to eliminate standing water and take protective measures to prevent mosquito bites.

public healthmosquito controlWest Nile virusSan CarlosSan Diego County
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Why It Matters

Residents in the San Carlos area face an increased risk of West Nile virus transmission, requiring immediate action to remove mosquito breeding sites and use personal protection.

Key Facts

  • Mosquitoes near San Carlos tested positive for West Nile virus.
  • The Vector Control Program is currently inspecting and treating sites in the San Carlos area.
  • In 2015, 44 San Diego County residents tested positive for West Nile virus, resulting in six deaths.
  • The Vector Control Program provides free mosquito fish to residents for use in stagnant water.
  • Residents can report mosquito activity or breeding sources by calling 858-694-2888 or emailing vector@sdcounty.ca.gov.
  • Recommended prevention steps include removing standing water from items like plant saucers, rain barrels, buckets, toys, and old tires.
  • Recommended personal protection includes wearing long sleeves, pants, and insect repellent.
  • Most human West Nile virus cases are asymptomatic or involve mild symptoms like fever, headache, or rash.

Who's Mentioned

organizationSan Diego County“Local government body managing the Vector Control Program.”organizationVector Control Program“Department responsible for mosquito monitoring and treatment.”locationSan Carlos“Neighborhood where infected mosquitoes were found.”