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Current Virus Activity

Current West Nile virus activity in Contra Costa County.
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News and Current Events

Official announcements and articles highlighting important vector and vector-borne related news.
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Stay Informed and Healthy

Get our Mosquito Bytes Newsletter, adult mosquito spray notifications, and media releases delivered automatically.
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In a Minute Videos

These one-minute videos take you right to the action as we control the insects and animals capable of transmitting disease/causing harm.
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Frequently Asked Questions

Get all the answers to our most frequently asked questions.
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