| Date | 1748 |
| Author | Arderon |
| Contribution | Published illustration of superficial fungal infection on fish. |
| Reference | Ainsworth |
| Notes | William Arderon. Ainsworth refers to this as "the earliest record of a mycotic disease in a vertebrate" and considers the fungus to be Saprolegnia. Extent of description not given by Ainsworth. Presumably this was not a significant discovery in the evolution of the germ theory. |
| Category | Miscellany |
| Pathogen Class | Fungi |
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