character: Dr. Jonas Salk
topic: Development of the Polio Vaccine
grade: 9
subject: Science
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character: Albert Sabin
topic: Oral Polio Vaccine Development
grade: 9
subject: Science
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character: Louis Pasteur
topic: Vaccination Principles
grade: 9
subject: Science
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character: Edward Jenner
topic: Smallpox Vaccine and its Influence on Immunology
grade: 9
subject: Science
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