Paralytic shellfish poisoning can occur from June to October, especially on the Pacific and New England coasts, when mussels, clams, oysters, and scallops are contaminated by the poisonous dinoflagellate responsible for red tide. Refresh your knowledge: https://mrkmnls.co/3KKKV2h | Merck Manual Professional

360 reactions · 4 comments | The first symptom of shellfish poisoning, a pins-and-needles sensation around the mouth, begins 5 to 30 minutes after eating. Learn more: https://msdmnls.co/3PTbLJb | MSD Manual Consumer | Facebook