health
February 12, 2026
‘Unprecedented’ spate of toxic mushroom illnesses jar California
After state sees four deaths and 40 hospitalizations, public health officials and foraging experts urge caution
TL;DR
- A wet winter in California has led to a significant increase in wild fungi, including the dangerous death cap mushroom (Amanita phalloides).
- Between late November 2025 and early February 2026, California reported four deaths and 40 hospitalizations linked to mushroom consumption, an unprecedented outbreak.
- The death cap mushroom closely resembles edible species and can be deadly even in small amounts, with mortality rates up to 50%.
- Experts like Rudy Diaz and Jess Starwood urge extreme caution, especially for beginner foragers, and recommend learning from experienced local experts.
- Climate change may also contribute to lesser-known or atypical mushroom species appearing in new areas.
- The state health department advises the public to only purchase mushrooms from trusted grocery stores and to seek immediate medical help if poisoning is suspected.
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