character: Dr. Smith
topic: History of Vaccines
grade: 9
subject: Science
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character: Louis Pasteur
topic: Development of Vaccination Techniques
grade: 9
subject: Science
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character: Edward Jenner
topic: Invention of the Smallpox Vaccine
grade: 9
subject: Science
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character: Jonas Salk
topic: Polio Vaccine Development
grade: 9
subject: Science
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