Your Local Epidemiologist in California

Your Local Epidemiologist in California

The CA Dose

West Nile Virus is moving fast, the Covid-19 summer wave is real, and trust-building

The CA Dose, July 23, 2026

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Matt Willis
Jul 23, 2026
∙ Paid

Bracing for West Nile Virus

We’re coming into West Nile Virus season again, and I’m seeing signs that this could be a harsh year. Here’s why, and how you can protect yourself.

A quick refresher. West Nile virus (WNV) is California’s most common mosquito-borne disease. Since 2003, we’ve seen more than 8,000 cases and over 400 deaths—the highest burden of…

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