| Date | 1894 |
| Author | Ermengem |
| Contribution | Discovered Bacillus botulinus, agent of botulism. |
| Reference | Ackerknecht |
| Notes | More fully, van Ermengem. Garrison gives date as 1897. Later Clostridium botulinum (sporulating, anaerobic, gram-negative). Index Bergeyana cites publication of1896. Earlier date, above, may not signify publication. |
| Category | Causation |
| Pathogen Class | Bacteria |
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