California officials are warning foragers after an outbreak of poisoning linked to wild mushrooms that has killed one adult and caused severe liver damage in several patients, including children.
The state poison control system has identified 21 cases of amatoxin poisoning, likely caused by death cap mushrooms, the health department said Friday. The toxic wild mushrooms are often mistaken for edible ones because of their appearance and taste.
“Death cap mushrooms contain potentially deadly toxins that can lead to liver failure,” Erica Pan, director of the California Department of Public Health, said in a statement. “Because the death cap can easily be mistaken for edible safe mushrooms, we advise the public not to forage for wild mushrooms at all during this high-risk season.”
One adult has died and several patients have required intensive care, including at least one who might need a liver transplant.
Outbreak of Potentially Deadly Amatoxin Poisoning Linked to the Consumption of Wild, Foraged Mushrooms
December 5, 2025
NR25-023
State advises public not to forage for wild mushrooms during this high-risk season
What You Need to Know: An outbreak of serious illness associated with eating foraged wild mushrooms has been reported. CDPH is urging individuals to avoid foraging for and eating wild mushrooms while risk of amatoxin poisoning is high.
SACRAMENTO – The California Department of Public Health (CDPH) is issuing an urgent advisory following a recent outbreak of amatoxin poisoning linked to the consumption of wild, foraged mushrooms. Confirmed cases have resulted in severe liver damage in both pediatric and adult patients, including one adult fatality. As of December 5, 2025, 21 cases have been identified by the California Poison Control System (CPCS), with significant clusters reported in the Monterey and San Francisco Bay Areas, although there is risk statewide.
“Death cap mushrooms contain potentially deadly toxins that can lead to liver failure, said Dr. Erica Pan, CDPH Director and State Public Health Officer. “Because the death cap can easily be mistaken for edible safe mushrooms, we advise the public not to forage for wild mushrooms at all during this high-risk season.”