Humans typically come into contact with saxitoxin through the ingestion of:

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Quizplus · Accepted Answer

Saxitoxin is a potent neurotoxin produced by certain species of marine dinoflagellates, which can accumulate in shellfish and other filter-feeding organisms such as clam, oysters, and mussels. When humans consume raw or undercooked shellfish contaminated with saxitoxin, they can experience paralytic shellfish poisoning (PSP) which can be fatal in severe cases. Therefore, the best choice for human exposure to saxitoxin is raw shellfish.

Humans Typically Come into Contact with Saxitoxin Through the Ingestion