| Date | 1883 |
| Author | Koch |
| Contribution | Discovered and cultured agent of cholera; confirmed and reported in the following year. |
| Reference | Brock |
| Notes | For details of follow-up, see 1884 Koch. See also 1854 Hassall and 1854 Pacini. |
| Category | Causation |
| Pathogen Class | Bacteria |
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