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California issues urgent warning after mushroom poisonings rise
State health officials are urging residents to avoid foraging for wild mushrooms following a surge in amatoxin poisonings that have caused severe liver damage and at least one death.
Cluster of cases linked to death cap mushrooms
The California Poison Control System has recorded 21 cases of amatoxin poisoning in northern California since mid-November, according to the California Department of Public Health (CDPH). The cases are likely tied to death cap mushrooms, a highly toxic variety that thrives during the region's rainy season.
Several victims, including children, have suffered severe liver damage, and at least one patient may require a liver transplant, the CDPH reported.
Why death caps are dangerous
Death cap mushrooms are particularly hazardous because they closely resemble edible varieties in taste, smell, and appearance. They often grow near oak and hardwood trees, making them difficult for untrained foragers to identify.
Despite their deceptive similarities, death caps contain lethal toxins that remain dangerous even after cooking, boiling, drying, or freezing. Ingesting them can lead to watery diarrhea, nausea, vomiting, abdominal pain, and dehydration within six to 24 hours. Symptoms may temporarily subside before causing life-threatening liver damage up to eight days later.
Statewide risk despite regional cluster
While most confirmed cases have occurred in the Monterey and San Francisco Bay areas, health officials warn that the risk extends across California. The CDPH advises against foraging for wild mushrooms entirely during this high-risk period.
"Death cap mushrooms contain potentially deadly toxins that can lead to liver failure. Because they can easily be mistaken for edible mushrooms, we urge the public not to forage for wild mushrooms at all," said Dr. Erica Pan, CDPH Director and State Public Health Officer.
Dr. Erica Pan, CDPH
Expert advice on wild mushroom consumption
Health authorities emphasize that only individuals with extensive training and experience should consume wild mushrooms they have picked themselves. The CDPH and local health officers, including Dr. Edward Moreno of Monterey County, stress that the risks far outweigh any potential benefits during this season.
