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Marin‑Sonoma Mosquito & Vector Control reports zero West Nile activity in 2024, flags invasive Aedes and new technologies
Summary
The district reported a largely quiet 2024 for West Nile and other endemic mosquito diseases in Marin and Sonoma counties, described routine operations and surveillance numbers, and warned about the regional spread of invasive Aedes aegypti mosquitoes that can carry dengue and other illnesses.
The Marin‑Sonoma Mosquito and Vector Control District presented its 2024 activity summary and 2025 priorities at the Cotati City Council meeting.
District manager Peter Bonkert said operations in 2024 returned zero local detections of West Nile virus in Marin and Sonoma counties, though statewide activity continued. ‘‘Of our collections tested in 2024, we found zero West Nile virus positives,’’ Bonkert said.
The district described its surveillance and operational footprint: about 1,600 adult mosquito traps were set in 2024, roughly 40,000 mosquitoes were identified and about 15,000 were tested for disease. The district handled roughly 6,000…
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