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NewsTelemundo 52 — LocalJune 29, 2026Los Angeles

West Nile Virus Detected in San Gabriel Valley Mosquitoes

Health officials have confirmed the first West Nile virus-positive mosquitoes of the year in Alhambra. Residents are advised to take preventative measures against mosquito bites as the virus is endemic to the region.

Read the full story at Telemundo 52 — Local

Why It Matters

Residents in the San Gabriel Valley face an increased risk of contracting West Nile virus, which can cause severe illness in approximately 1 out of 150 infected individuals.

Key Facts

  • The first West Nile virus-positive mosquitoes of the year were detected in Alhambra.
  • The San Gabriel Valley Mosquito and Vector Control District is conducting ongoing surveillance and treatment in public areas.
  • There is currently no human vaccine or cure for the West Nile virus.
  • Approximately 1 in 5 infected people develop symptoms like fever, headache, or body aches.
  • Approximately 1 in 150 infected people develop severe illness requiring hospitalization.
  • Older adults and those with weakened immune systems are at higher risk for severe complications.
  • The virus is transmitted to humans through the bite of an infected mosquito.
  • Residents are advised to empty standing water weekly to prevent mosquito breeding.
  • Recommended repellents include those containing DEET, picaridin, oil of lemon eucalyptus, or IR3535.

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