When Edward Jenner created the first vaccine against smallpox, he had no idea what caused smallpox. The scientific appreciation of “germ theory” was just the start of the process of understanding microbiology. The History Guy recalls the forgotten history of the scientific study of “germs,” and how early germ theory actually delayed the scientific discovery of viruses.
“Seeds,” I tell you. “Seeds of Fever and Seeds of Plague That Pass Through the Air”
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