| Date | 1865 |
| Author | Hallier |
| Contribution | Alleged fungal cause of diseases. |
| Reference | Anon. |
| Notes | Published first of a series of works (1865-1870) claiming fungal etiology of many diseases of humans, animals and plants. Various objects seen microscopically in various diseases were said to be different stages in development. Faulty work, later refuted, but important because of early advocacy of germ theory. Founded Zeit. f. Parasit. |
| Category | Causation |
| Pathogen Class | Fungi |
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