| Date | 1881 |
| Author | Pasteur |
| Contribution | c. Published reports on a germ that was probably the diplococcus of pneumonia. |
| Reference | Sternberg |
| Notes | It had come from saliva of a case of rabies and its significance was not understood. The work began at the end of 1880. See Sternberg. |
| Category | Causation |
| Pathogen Class | Bacteria |
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