| Date | 1892 |
| Author | Smith |
| Contribution | With Kilborne, published note on a microbial disease transmitted by arthropods. |
| Reference | Katz |
| Notes | Theobald Smith and Fred L. Kilborne. The note (in a letter to an editor) referred to both the protozoon parasite and the arthropod vector. This was a preliminary announcement of what was to become a landmark paper; see 1893 Smith. |
| Category | Causation |
| Pathogen Class | Protozoa |
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