A middle-aged man with abdominal pain after consuming canned food

A 35-year-old man presented with complaints of severe abdominal pain, nausea, vomiting, and diarrhea. He reports these complaints started one day ago. He mentions attending a community gathering which involved canned food, pickled vegetables, and smoked meat. He recalls the food had an unusual odour and taste. Over the past several hours he experienced muscle weakness, difficulty speaking and swallowing. He denies any fever or any recent travel. He has no significant medical history. On physical examination the patient appeared weak and fatigues with ptosis, dysarthria, and symmetrical descending flaccid paralysis. He exhibits bilateral facial weakness, reduced eye movement, and a weak gag reflex with diminished or absent deep tendon reflexes.  His respiratory assessment shows reduced respiratory rate, use of accessory muscles though her lung fields are clear on auscultation. Her vital signs include a heart rate of 60 beats per minute, blood pressure of 110/70mmHg, respiratory rate of 15 breaths per minute, oxygen saturation of 92% on room air. A serum toxin assay and stool culture was recommended alongside food sample testing.