| Date | 1665 |
| Author | Diemerbroeck |
| Contribution | Suggested that plague was a venom propagated like yeast, but in the air. |
| Reference | Wilson |
| Notes | Catherine Wilson, in her 1995 book, says this concept was not that of a living contagion in the 10th Century sense. |
| Category | Causation |
| Pathogen Class | General |
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