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"Cell Theory" - all living things come from cells
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Microscope / observed "animiacules"
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Pre/Golden Age of Microbiology
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Immunity / Coxpox protected from smallpox
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Fermentation / Disproved spontaneous generation / Pasteurization
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Aseptic surgery
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Microbes cause human disease / Germ Theory of Disease
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Vaccinations
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Theory of Immunity / "Magic Bullet" - destroying pathogens without harming the host
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Antibiotics (penicillin)