character: Dr. Albert Sabin
topic: Oral Polio Vaccine Development
grade: 12
subject: Biology
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character: Jonas Salk
topic: Inactivated Polio Vaccine
grade: 12
subject: Biology
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character: Edward Jenner
topic: Vaccine Development History
grade: 12
subject: Biology
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character: Paul Offit
topic: Vaccine Safety and Efficacy
grade: 12
subject: Biology
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