character: Dr. Sarah Lee
topic: The History of Vaccination and Its Impact on Society
grade: 9
subject: Science
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character: Louis Pasteur
topic: The Development of Vaccines
grade: 9
subject: Science
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character: Edward Jenner
topic: The Smallpox Vaccine and Its Significance
grade: 9
subject: Science
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character: Jonas Salk
topic: The Polio Vaccine and Public Health Advances
grade: 9
subject: Science
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