09/03/2026
Tiny mosquitoes can create big public health challenges.
Recent reports of increased West Nile virus activity are a reminder that mosquito season isn't over just because summer is winding down. Mosquitoes can continue to thrive when conditions are favorable, and even small amounts of standing water can support mosquito development. Taking simple preventive steps and supporting proactive mosquito management programs can help reduce risk in our communities.
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West Nile virus is on the rise in Southern California, outpacing the five-year average in much of the region.