| Date | 1875 |
| Author | McConnell |
| Contribution | Reported a new trematode, Clonorchis (Asiatic liver fluke) and described its pathogenicity. |
| Reference | Grove |
| Notes | He considered it "unequivocally" responsible for severe liver disease. Had found the fluke in the previous year. |
| Category | Causation |
| Pathogen Class | Helminths |
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