character: Dr. Jakob Kraft
topic: Vaccination Strategies and Public Health
grade: 8
subject: History
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character: Edward Jenner
topic: The Development of Vaccination
grade: 8
subject: History
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character: Jonas Salk
topic: Polio Vaccine and Public Health Campaigns
grade: 8
subject: History
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character: Louis Pasteur
topic: The Germ Theory and Vaccination Advances
grade: 8
subject: History
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