At least 20 people in Oregon have fallen ill from paralytic shellfish poisoning (PSP) after recreationally harvesting mussels from certain areas on May 25 or 26. The outbreak has led to the closure of a stretch of the Oregon coast for mussel harvesting due to high PSP levels. The Oregon Health Authority has urged those who harvested mussels from these areas to discard them and has warned against eating mussels from contaminated areas. The authority also highlighted that only privately harvested mussels are affected, not those purchased commercially. Additionally, the recreational harvesting of razor clams has been banned from Cape Blanco to the California border due to high levels of domoic acid. PSP is a potentially deadly foodborne illness caused by consuming shellfish contaminated with the natural biotoxin, and treatment involves supportive care and respiratory support, with no antidote available.