character: Louis Pasteur
topic: Vaccination against rabies
grade: 9
subject: Science
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character: Louis Pasteur
topic: Germ theory of disease
grade: 9
subject: Science
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character: Edward Jenner
topic: Pioneering vaccination techniques
grade: 9
subject: Science
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character: Paul Ehrlich
topic: Development of immunology
grade: 9
subject: Science
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