The symptoms of tetanus are caused by the exotoxin produced by Clostridium tetani.
The symptoms of tetanus are due to the exotoxin produced by Clostridium tetani, not the bacteria growth itself. The toxin tetanospasmin, produced by the bacterium, is responsible for causing the rigid paralysis associated with tetanus. When these endospores enter an anaerobic wound, they germinate, and the vegetative bacteria then produce this harmful exotoxin, leading to the characteristic symptoms of the disease.
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