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.
Paralytic shellfish poison (PSP) is naturally occurring toxin, called a biotoxin, that is produced by some species of microscopic algae.PSP can concentrate in shellfish and, when eaten, can cause illness in humans.This biotoxin affects the nervous system and paralyzes muscles, thus the term paralytic shellfish poison. High levels of PSP can cause severe illness and death.SP can concentrate in shellfish and, when eaten, can cause illness in humans. This biotoxin affects the nervous system and paralyzes muscles, thus the term paralytic shellfish poison. High levels of PSP can cause severe illness and death.