In an unprecedented measure, Oregon has shuttered its entire coastline to mussel harvesting following a severe outbreak of shellfish poisoning. This closure extends to select areas for harvesting other species, such as razor clams, bay clams, and oysters, affecting roughly 185 miles of coastline. At least 20 people have fallen ill due to elevated toxin levels detected in shellfish since mid-May.
The toxins responsible, known as saxitoxins, cause paralytic shellfish poisoning (PSP), a condition that can manifest symptoms such as numbness, vomiting, and in severe cases, respiratory difficulties. These toxins, produced by algae, remain potent and lethal even after cooking or freezing the shellfish.
State health officials have launched a survey targeting those who consumed local shellfish after May 13, aiming to identify the outbreak’s origin and scope. Meanwhile, the Oregon Department of Agriculture continues to test shellfish biotoxins regularly, with areas only reopening upon consecutive tests proving toxin levels have subsided. Neighboring Washington state has also implemented similar harvesting bans along its Pacific coast in response to the toxin threat.
Source: Oregon Dept. of Agriculture