| Date | 1658 |
| Author | Kircher |
| Contribution | Recorded remarks which some have taken to imply discovery of protozoa or bacteria. |
| Reference | Dowel |
| Notes | Kircher used words meaning insect and worm, but these could have referred to any miniscule animal, and their use does not, in itself, preclude the sense of microbe. For various reasons, Dowel rejects any validity to claims made on behalf of Kircher. |
| Category | Miscellany |
| Pathogen Class | General |
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