🏥 USMLE Exam Prep

A patient develops severe flaccid paralysis after consuming improperly canned food. The causative agent produces a neurotoxin that inhibits acetylcholine release at the neuromuscular junction. Which bacterium is responsible for this condition?

A Clostridium tetani
B Clostridium botulinum
C Staphylococcus aureus
D Streptococcus pyogenes

✓ Correct Answer: Option B

Clostridium botulinum produces botulinum toxin, which cleaves SNARE proteins, preventing acetylcholine release at the neuromuscular junction and causing flaccid paralysis. Clostridium tetani produces tetanus toxin, causing spastic paralysis.

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