| Date | 1877 |
| Author | Harz |
| Contribution | Described actinomycosis in cattle. |
| Reference | Anon. |
| Notes | Named the organism Actinomyces bovis (regarding bacteria as fungi as was common until mid-20th Century). Actinomycetes continued to be regarded as fungi until the late 20th Century, at which time they were considered filamentous bacteria. |
| Category | Causation |
| Pathogen Class | Fungi |
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