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Event Brief

Toxic mushroom superbloom causes mass poisoning outbreak

San Francisco faces California's largest mushroom poisoning outbreak due to a toxic superbloom, alarming local residents.
WHO: Local residents and health officials
WHAT: Mushroom poisoning outbreak
WHEN: Feb 5, 2026 at 4:05 PM ET
WHERE: San Francisco, CA
WHY: A superbloom of toxic mushrooms has led to increased poisonings.

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