Botulism: Clinical Syndrome, Not a Weapon
Botulism = flaccid paralysis from botulinum neurotoxin (BoNT) produced by Clostridium botulinum (and rare strains of C. butyricum, C. baratii).
Key Facts
- Not a weapon in clinical context: It's a toxin-mediated illness. Weaponization (bioterrorism) is a separate, extremely rare scenario.
- Modes of acquisition: Foodborne (improper canning), wound (injection drug use), infant (intestinal colonization), iatrogenic (therapeutic BoNT overdose).
- Mechanism: BoNT cleaves SNARE proteins → blocks ACh release at neuromuscular junction & autonomic synapses.
- Clinical: Descending symmetric paralysis (cranial nerves → limbs → respiratory). Clear sensorium. No fever.
- Treatment: Antitoxin (heptavalent equine) early; supportive care (ventilation weeks-months). Antibiotics for wound botulism only.
Public Health
Reportable condition. CDC holds antitoxin stockpile. Home canning safety (pressure canner for low-acid foods) is primary prevention.
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