Signs and symptoms of foodborne botulism include: 1  Difficulty swallowing or speaking. 2  Dry mouth. 3  Facial weakness on both sides of the face.  Blurred or double 1  vision. Drooping eyelids.  Trouble 1  breathing. Nausea, vomiting and abdominal cramps.  Paralysis.
DOH 332-058 October 2013 Paralytic Shellfish Poisoning (âred tideâ) What is paralytic shellfish poisoning? Paralytic shellfish poisoning (PSP) is a serious illness caused by eating shellfish contaminated with algae that contains a toxin harmful to humans.OH 332-058 October 2013 Paralytic Shellfish Poisoning (âred tideâ) What is paralytic shellfish poisoning? Paralytic shellfish poisoning (PSP) is a serious illness caused by eating shellfish contaminated with algae that contains a toxin harmful to humans.
Shellfish poisoning is a general term used to indicate poisoning that occurs when shellfish (mainly oysters, clams, scallops or mussels) are eaten by humans.Shellfish are usually associated with saltwater habitats, but some species inhabit freshwater. Both freshwater and saltwater shellfish may cause poisoning.hellfish poisoning is a general term used to indicate poisoning that occurs when shellfish (mainly oysters, clams, scallops or mussels) are eaten by humans.