character: Albert Sabin
topic: Contributions to the Development of the Oral Polio Vaccine
grade: 9
subject: Science
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character: Jonas Salk
topic: Development of the Inactivated Polio Vaccine
grade: 9
subject: Science
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character: Public Health Initiatives
topic: Impact of Polio Vaccination on Global Health
grade: 9
subject: Science
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character: Virology
topic: Understanding Poliovirus and Vaccine Development
grade: 9
subject: Science
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