West Covina, Calif. (October 15, 2025) — The San Gabriel Valley Mosquito & Vector Control District (SGV Mosquito/District) is working collaboratively with the Los Angeles County Department of Public Health to conduct additional surveillance, mosquito control, and educational outreach in the San Gabriel Valley community where a locally acquired case of Dengue has been confirmed.

District staff have expanded surveillance by deploying additional traps and increased the frequency of testing to identify the presence of mosquito-transmitted diseases in local mosquito populations. Additionally, field staff have conducted door-to-door property inspections and mosquito control treatments to reduce adult mosquito populations and mosquito breeding sources. Depending on surveillance trap results, additional treatments will be considered.

“In response to emerging disease risk, the District rapidly launched enhanced mosquito control operations, surveillance, and outreach across the community,” said SGV Mosquito District Manager Jason Farned. “We encourage residents to take simple preventive steps at home, like tipping out standing water and using mosquito repellent.”

Mosquito control is a shared responsibility. The District urges residents to take an active role in reducing the threat of Dengue in their community by taking the following actions to stay healthy and bite-free:

• Tip out stagnant water around the home weekly;
• Toss unused containers that can hold stagnant water; and
• Protect against bites by using insect repellent containing any one of the following CDC-recommended ingredients: Picaridin, DEET, Oil of Lemon Eucalyptus (or PMD), or IR3535.

If residents suspect they are experiencing any dengue-related symptoms, they are encouraged to reach out to their primary health care provider. For more information regarding mosquitoes, residents can contact the San Gabriel Valley Mosquito and Vector Control District

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Media Contact

Anais Medina Diaz, Director of Communications
amedinadiaz@SGVmosquito.org | 626-814-9466