West Nile virus Activity in the County - Orange County Mosquito and Vector Control District

West Nile virus Activity in the County

Updated West Nile map

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WNV Data for 2022 WNV Data for 2021 WNV Data for 2020 WNV Data for 2019 WNV Data for 2018 WNV Data for 2017 WNV Data for 2016

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West Nile Virus

West Nile virus (WNV) is spread by the bite of an infected mosquito and is endemic to Orange County.

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Residential truck-mounted applications

Click here to view treatments in neighborhoods.