Below is an instruction from Human. Write a response.
    ### Instruction:
    what are the symptoms of botulism?
    ### Response:
    The classic symptoms of botulism include double vision, blurred vision, drooping eyelids, slurred speech, difficulty swallowing, dry mouth, and muscle weakness. Infants with botulism appear lethargic, feed poorly, are constipated, and have a weak cry and poor muscle tone.
    