Disease
Botulism
Toxin-driven descending flaccid paralysis
BOT-yoo-liz-um
High-yield clue
Symmetric descending flaccid paralysis starting with cranial nerves (diplopia, ptosis, dysphagia) is the classic botulism clue.
Overview
A paralytic syndrome caused by botulinum toxin from Clostridium botulinum, studied for its symmetric descending flaccid paralysis. It matters as the flaccid counterpart to tetanus and a reportable public-health event with distinct foodborne, infant, and wound forms.
Classification
- Neuromuscular toxin syndrome
- Flaccid (descending) paralysis pattern
- Forms: foodborne, infant, wound, adult intestinal
- Reportable public-health framing
Lab & identification clues
- Descending paralysis: cranial nerves first vocabulary
- Bulbar signs: diplopia, ptosis, dysarthria, dysphagia terms
- Infant form linked to honey and floppy-baby, constipation vocabulary
- Toxin blocks acetylcholine release concept
Associations
- Foodborne form from improperly canned low-acid foods
- Infant (intestinal) form is the most common U.S. form
- Wound form associated with injection drug use
- No fever and preserved sensation as distinguishing framing
Commonly confused with
- Tetanus (spastic vs flaccid)
- Guillain-Barre / myasthenia gravis
Your notes
Original student-study summary. Sources checked: OpenStax Microbiology 2e, NCBI Bookshelf Medical Microbiology, and CDC topic pages where applicable; reviewed 2026-06. Educational only; no diagnosis, treatment, dosing, or specimen-handling guidance.