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Event Brief

Bay Area Flu Hotspots Identified in Wastewater Study

Influenza A levels rise in Bay Area wastewater, with hotspots in SF and surrounding cities.
WHO: Local health officials and researchers
WHAT: Identification of flu hotspots through wastewater analysis
WHEN: Dec 18, 2025 at 7:00 PM ET
WHERE: San Francisco and surrounding Bay Area cities
WHY: To monitor and address rising influenza A cases

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