This nonfiction work argues that the story of disease may unfold through long-term changes in microbes. It traces a Darwinian view applied to bacteria, exploring how environment and time can steer the characters of infection from one disease to another, across many generations.

Learn how scientists frame the germ theory, its supporting ideas, and the debates that surround it.
See examples and types of anomalous cases that challenge simple explanations of disease origins.
Discover how experiments and observations from the era contribute to discussions about evolution, environment, and infection.
Understand how concepts like site, transmission, and the “nondescript” disease concept fit into a broader view of pathology.

Ideal for readers interested in the history of medicine, microbiology, and the early ideas that shaped modern thinking about germs and disease.

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