| Date | 1855 |
| Author | Humbert |
| Contribution | Infected himself with pork tapeworm, confirming cysticercus as infective stage. |
| Reference | Grove |
| Notes | Not known whether work done, or reported, in this year. Confirmed work of Kuchenmeister. |
| Category | Causation |
| Pathogen Class | Helminths |
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