Contra Costa County Battles Invasive Aedes aegypti Mosquito in Antioch

Mosquitoes are the deadliest animals globally, causing up to one million deaths yearly from diseases like malaria and dengue. In Contra Costa County, the invasive Aedes aegypti mosquito, which bites during the day and can transmit Zika and yellow fever, has been detected in Antioch since 2024.

The District is conducting door-to-door inspections and larval control, and exploring sterile insect techniques. Residents should dump standing water weekly to prevent breeding.

Contact the District for daytime biting mosquitoes. - Aedes aegypti is a daytime-biting mosquito that spreads dangerous viruses.

- It was first found in Martinez in 2022 and later in Antioch in 2024. - The District uses door-to-door checks, larval control, and innovative sterilization methods.

- Residents must eliminate standing water to reduce mosquito habitats. The District provides free services to Contra Costa County residents.