character: Louis Pasteur
topic: Microbiology and the Germ Theory
grade: 8
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character: Robert Koch
topic: Germ Theory Contributions
grade: 8
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character: Joseph Lister
topic: Antiseptic Technique
grade: 8
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character: Antonie van Leeuwenhoek
topic: Microscopy and Early Microbiology
grade: 8
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