Ciguatera and Norwalk virus are classified as what type of toxins?

Ciguatera and Norwalk virus are classified as seafood toxins because they are primarily associated with the consumption of contaminated marine life. Ciguatera is a specific type of food poisoning caused by eating fish that have accumulated toxins produced by dinoflagellates, which are microscopic marine organisms. These toxins can concentrate in certain fish species, particularly those at the top of the food chain, like barracuda and grouper.

Norwalk virus, on the other hand, is a highly contagious virus that can contaminate seafood, particularly shellfish, when they are harvested from contaminated waters. Both of these toxins highlight the risks associated with seafood consumption, particularly when proper food safety and sourcing practices are not followed, emphasizing the importance of understanding and recognizing seafood as a potential source of toxic contamination.