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Invasive Aedes aegypti Mosquitoes Have Been Detected Again in the County

For more information on this invasive mosquito visit our Aedes aegypti informational page. For scheduled treatments regarding this mosquito, visit Wide Area Larvicide Spraying page.

 

Aedes Aegypti Detection Timeline

2025

As of April 2025, Aedes aegypti have been found in some of the same neighborhoods where they were detected last year. Details of the detections are listed below.

  1. April - South San José - Found in an existing neighborhood that was affected in 2024, near Cypress Point Court and Fairway Glen Lane.

  2. May - San José - Found in an existing neighborhood that was affected in 2024, near Cortez Avenue and Orlando Drive.

    Last updated: 5/15/25

LocationTotal Mosquitoes 
Detected
South San José4
San José (Cortez Avenue and Orlando Drive)3

2024

In 2024, Aedes aegypti were found in six different locations.  Details about each detection is listed below.

  1. March - East San José - Found in a neighborhood between Machado Lane and Fleming Avenue, near Story Road.
  2. September - Gilroy - Found in a neighborhood near Hanna Street and W. 10th Street.
  3. September - Santa Clara - The initial detection in this neighborhood happened in September 2024, bordering the streets of Agate Drive, Bowers Avenue, Chromite Drive, Monroe Street, and Meadowbrook Drive. As of October 2024, the expansion is within the bordering streets of Agate Drive, Bowers Avenue, Mark Avenue, and Calabazas Boulevard.
  4. October - San José (near Oak Hill Memorial Park) - Found in a mixed-use area in San José near Oak Hill Funeral Home & Memorial Park.
  5. October - South San José - Found in a neighborhood around Santa Teresa County Park.
  6. November - San José - Found in a neighborhood near Cortez Avenue and Orlando Drive.
LocationTotal Mosquitoes 
Detected
East San José151
Gilroy6
Santa Clara172
San José (Oak Hill)2
South San José47
San José (Cortez Avenue and Orlando Drive)10

2023

No Aedes aegypti mosquitoes were detected in the county in 2023.

2022

In 2022, two invasive mosquitoes were detected in a industrial area of San José.

  1. October - San José - The invasive mosquitoes were found near the intersection of Dixon Landing Road and McCarthy Boulevard in San José. No additional mosquitoes were found besides the two.
LocationTotal Mosquitoes 
Detected
San José2