Domoic acid poisoning, also known as amnesic shellfish poisoning, is a rare condition that can cause mild to severe illness, and very rarely, death in humans. Amnesic shellfish poisoning occurs when people eat shellfish that contains high levels of domoic acid. Symptoms usually occur within 30 minutes to 24 hours after eating shellfish with high levels of domoic acid. Mild symptoms can last several days, and can include vomiting, diarrhea, headache, abdominal cramps, dizziness, and disorientation. Rarely, severe symptoms occur, including difficulty breathing, seizures, coma, loss of short-term memory, irregular heartbeat, and confusion. Please seek medical care if you suspect that you have amnesic fish poisoning. To reduce your risk of getting amnesic shellfish poisoning, avoid eating shellfish with high levels of domoic acid. Public health warnings regarding contaminated shellfish can be found on the California Department of Fish and Wildlife website.