California Sees Surge in Deadly Wild Mushroom Poisonings
California health officials report 35 cases of wild mushroom poisoning between Nov. 18 and Jan. 4, resulting in three deaths and three liver transplants in an unusually active season driven by abundant death cap mushrooms in Northern California. Sonoma County, which confirmed a resident’s death last weekend, and the California Department of Public Health are warning residents not to eat foraged mushrooms, noting that early rains and mild fall weather have boosted growth and that symptoms can initially subside before liver failure develops.
📌 Key Facts
- From Nov. 18 to Jan. 4, California recorded 35 wild mushroom poisoning cases, including 3 deaths and 3 liver transplants.
- Sonoma County officials say a resident died last weekend after eating wild mushrooms, amid significant outbreaks in the Monterey and San Francisco Bay areas.
- Health authorities attribute many cases to death cap mushrooms containing amatoxin, warn that cooking or freezing does not make them safe, and advise consumers to eat only mushrooms from reputable retailers.
📊 Relevant Data
Many of the 2025 mushroom poisoning cases in California involve immigrant families who confused death cap mushrooms with edible lookalike species from their home countries.
California Poison Control System Responds to Largest Poisonous Mushroom Cluster in Decades — UCSF School of Pharmacy
California is home to 10.6 million immigrants, comprising 22% of the state's population.
Immigrants in California — Public Policy Institute of California
From January to October 2023, America's Poison Centers received more than 7,250 calls about potential mushroom poisonings, an 11% increase from all of 2022.
Mushrooms' popularity is booming, but so are poisonings, experts warn — Wayne State University School of Medicine
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