Public health officials report 21 cases linked to foraged mushrooms, including one death and severe liver damage.
Dr. Erica Pan, California’s Director of Public Health, issued an urgent warning Friday advising residents not to consume wild mushrooms after a series of poisonings tied to deadly varieties like the death cap. The California Department of Public Health (CDPH) confirmed that 21 people have suffered amatoxin poisoning after eating foraged mushrooms, with cases primarily clustered in the Monterey and Bay Area regions.
One of those cases has resulted in death, while several others — including both adults and children — have sustained severe liver damage. At least one patient is facing the possibility of a liver transplant.
The CDPH stressed that while many of the recent poisonings were localized, the danger extends across California. “Fall and winter rains create ideal growing conditions for toxic mushrooms,” the department said in its advisory. These mushrooms are often found near oaks, hardwoods, and pine trees, making them especially easy to stumble upon in both rural and suburban environments.
Despite resembling edible varieties, toxic mushrooms like death caps remain dangerous even after being cooked, boiled, frozen, or dried.
Symptoms of amatoxin poisoning — including vomiting, watery diarrhea, nausea, stomach pain, and dehydration — may appear anywhere from six to 24 hours after consumption. Although these symptoms can temporarily subside, the CDPH warned this period of apparent recovery is misleading.
“Patients may still develop serious to fatal liver damage within 48 to 96 hours after eating the mushrooms,” the agency said.
Dr. Pan emphasized the importance of erring on the side of caution. “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,” she said.
To minimize risk, health officials recommend only consuming mushrooms purchased from trusted grocery stores or commercial sources.

