- Rare but most serious.
- Food most frequently responsible are home preserved foods e.g. home canned vegetables, pickles, home made cheese and similar foods.
- Food Poisoning due to Clostridium botulinum (Botulism) is manifested as weakness and paralysis of limbs and respiratory muscles between 18-36 hours of consuming contaminated food.
- Other symptoms are
- blurring of vision
- drooping of eye lids
- difficulty of speech
- generalized weakness
- Death is frequent.