Botulism: clinical features

Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .

Botulism: clinical features. Botulism is caused by the exotoxins of Clostridium botulinum: toxins A-G. Fully referenced neurology checklist.

Pathogenesis of botulism

  • Botulism is caused by the exotoxins of Clostridium botulinum: toxins A-G
  • The toxins act by presynaptic neuromuscular junction (NMJ) blockade
  • They do this by inhibiting acetylcholine release
  • This causes neuromuscular paralysis

Infantile botulism: features

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Other forms of botulism

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Botulism weakness

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Autonomic dysfunction: features

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Symmetrical cranial neuropathies: features

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Differential diagnosis

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References

  1. Thajeb T, Chen Y-M, Dai D-F, Thajeb P. Botulism: a frequently forgotten old malady. Int J Gerontol 2007; 1:118-124.
  2. Sobel J. Botulism. Clin Infect Dis 2005; 41:1167-1173.

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