Tag: Ventura County Environmental Health Division (Division)

Bilingual report — Ventura County residents urged to eliminate standing water following recent rainfall to prevent mosquito breeding

VENTURA — Following last week’s rainfall and with warmer temperatures expected this week, the Ventura County Environmental Health Division (Division) is urging residents to eliminate standing water around their homes and properties to prevent mosquito breeding and reduce the risk of mosquito-borne diseases, including West Nile virus (WNV). The reminder comes as the California Department of Public Health reports West Nile virus activity at a five-year high statewide.

Standing water left in outdoor containers can quickly become a breeding source for mosquitoes. In as little as seven days, mosquito eggs can hatch, larvae can develop, and adult mosquitoes can emerge. With mosquito activity continuing into the fall, recent rainfall, and warmer temperatures may contribute to increased mosquito populations throughout Ventura County.

Bilingual report — Third Local Bird Tests Positive for West Nile Virus in Ventura County

VENTURA —The Ventura County Environmental Health Division (Division) received confirmation from the California Department of Public Health that a bird collected on July 2nd, 2026, from the city of Thousand Oaks, tested positive for West Nile Virus (WNV). WNV is established in Ventura County and additional WNV positives are expected.Ventura County Public Health confirms that no human cases have been identified to date in 2026.

Bilingual report — Mosquito sample tests positive for West Nile Virus in Ventura County

VENTURA — The Ventura County Environmental Health Division (Division) received confirmation from the California Department of Public Health that mosquitoes collected from the City of Fillmore on June 17th, 2026, tested positive for West Nile Virus (WNV). WNV is established in Ventura County and additional WNV positives are expected. This is the first mosquito sample collected in 2026 from Ventura County to test positive for WNV. Ventura County Public Health confirms that no human cases have been identified to date in 2026.