character: Mr. David Lee
topic: The History of Vaccines and Disease Prevention
grade: 10
subject: Science
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character: Dr. Edward Jenner
topic: The development of the smallpox vaccine
grade: 10
subject: Science
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character: Louis Pasteur
topic: Pasteurization and its role in disease prevention
grade: 10
subject: Science
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character: John Snow
topic: Cholera and the establishment of epidemiology
grade: 10
subject: Science
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