| Date | 1898 |
| Author | Koch |
| Contribution | Described Theileria parva, agent of East Coast Fever in cattle. |
| Reference | Anon. |
| Notes | Parasitol. Today 9: 348, 1993 or '94. Koch's work on the control of the disease was not successful; see Brock, 1991 |
| Category | Causation |
| Pathogen Class | Protozoa |
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