Toxin of Bacillus Botulinum
Food poisoning from canned spinach produced a clinical picture suggested in a bulbar paresis. Eye symptoms, ptosis, double vision, blurred vision. Difficulty in swallowing and breathing, choking sensation; weakness and uncertainty in walking, "blind staggers," dizziness, thickening of speech. Cramping pain in stomach. Mask-like expression of face, due to weakness of facial muscles. Severe constipation.