Domoic Acid Poisoning, also known as Amnesic Shellfish Poisoning (ASP), is a severe form of food poisoning caused by consuming seafood contaminated with domoic acid. This potent neurotoxin is produced by certain marine algae, primarily affecting humans and marine wildlife in coastal regions globally during harmful algal blooms.
No active Domoic Acid Poisoning reports in Washington right now.
It can change overnight. Be the first to know when it does.
Domoic Acid Poisoning was first identified in 1987 during a major outbreak in Prince Edward Island, Canada. Contaminated mussels caused over 100 illnesses and several deaths, notably characterized by severe short-term memory loss. This event led to the recognition of domoic acid as a significant marine biotoxin and the implementation of widespread monitoring programs.
Domoic Acid Poisoning is transmitted through the consumption of seafood (primarily shellfish like mussels, clams, oysters, and scallops, but also certain finfish and crab viscera) that have accumulated domoic acid. These marine organisms filter-feed on or consume toxic algae during harmful algal blooms. The toxin is not spread directly from person to person.
Contagious Period: Varies by disease
Local health department information and state-specific prevention guidance
Our AI-powered surveillance continuously monitors Domoic Acid Poisoning activity across Washington. We track data from state health departments, local hospitals, CDC reports, and 50+ global health sources to provide early warning of emerging threats.
Get instant push notifications when Domoic Acid Poisoning activity increases in Washington or your specific county.
For official state health alerts, vaccination locations, and public health guidance specific to Washington, visit your state health department's website.
Whether you live in Washington or are traveling there, knowing the symptoms, timeline, and when to seek care helps you act quickly if exposure occurs.
Seek care if you experience severe dehydration, bloody stools, high fever, or symptoms lasting more than 3 days. Children under 5, adults over 65, and immunocompromised individuals should seek care earlier.
Emergency symptoms: Severe dehydration, inability to keep fluids down for 12 or more hours, or neurological symptoms require emergency care.
Get Domoic Acid Poisoning alerts for Washington.
Know the moment activity changes. Weekly digest included.
Trusted information from leading health organizations
Global disease surveillance and guidelines from the World Health Organization
View WHO Resources →Disease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.
Last reviewed: 2026-07-18
Receive instant push notifications when Domoic Acid Poisoning activity increases in Washington or your travel destinations. Track 200+ diseases with location-based alerts. Used by healthcare systems, EMS, schools, and travelers worldwide.
Open Web App Enterprise Solutions