Neurotoxic shellfish poisoning is caused by brevetoxin, a neurotoxin secreted by certain dinoflagellates found worldwide, with most generated by Karenia brevis in the Gulf of Mexico. Symptoms include numbness, tingling, and gastrointestinal discomfort, with treatment focusing on supportive care. Shellfish consumption is linked to the condition due to bioaccumulation, and red tides can cause toxic […]