character: Edward Jenner
topic: The Development of the Smallpox Vaccine
grade: 9
subject: Science
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character: Louis Pasteur
topic: Vaccine Development and Germ Theory
grade: 9
subject: Science
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character: Paul Ehrlich
topic: Antitoxins and Immunology
grade: 9
subject: Science
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character: Robert Koch
topic: Contributions to Microbiology and Vaccination
grade: 9
subject: Science
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