Four Dead as Toxic Death Cap Mushrooms Surge Across California After Rains

At least four people have died and several others require liver transplants after consuming death cap mushrooms that have proliferated across California following heavy rains, prompting strong warnings from public health officials about the dangers of foraging wild fungi.

Feb 7, 2026 - 10:18
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Four Dead as Toxic Death Cap Mushrooms Surge Across California After Rains

A spike in death cap mushroom growth across California after a rainy winter has resulted in at least four fatalities and several critical cases requiring liver transplants, according to the California Department of Public Health. Health authorities say more than three dozen poisonings have been reported since mid-November, far exceeding typical annual figures, as the toxic fungi flourish in parks and natural areas from Northern California to the Central Coast.

Death cap mushrooms contain potent amatoxins that can cause severe liver damage and organ failure — effects that are not prevented by cooking, drying, or other preparation. Early symptoms such as nausea, vomiting, and diarrhea may appear within 24 hours but can rapidly progress to life-threatening liver injury over the next few days.

Officials warn that the mushrooms are easily mistaken for edible varieties, especially by people unfamiliar with local species, and have issued multilingual advisories targeting communities disproportionately affected, including Spanish, Mixteco, and Mandarin Chinese speakers. The California health department strongly recommends avoiding all wild mushroom foraging this season and buying edible mushrooms only from trusted sources.

Public health experts also note a significant rise in all mushroom exposures reported to poison control centers this season, underscoring the heightened risk posed by wild fungi amid favorable growing conditions.

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