California health officials on Friday warned against foraging for wild mushrooms after a poison found in certain varieties killed one person and caused liver damage to others.

The California Poison Control System identified 21 cases of poisoning, including the death of one adult, from a potent toxin known as amatoxin that is found in some mushrooms.

The illnesses were linked to the consumption of death cap mushrooms between mid-November and early December, the California Department of Public Health said in a news release.

The poisoning outbreak led to severe liver damage in children and adults, and at least one person may need a liver transplant, the department said. It did not specify how many sustained liver damage.

Death cap mushrooms are one of the deadliest mushroom varieties and

See Full Page