character: Dr. Emily Chen
topic: The Impact of Herd Immunity on Public Health
grade: 10
subject: Science
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character: Dr. Andrew Smith
topic: Understanding Vaccines and Immune Response
grade: 10
subject: Science
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character: Dr. Sarah Johnson
topic: The Role of Public Health Campaigns in Disease Prevention
grade: 10
subject: Science
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character: Dr. Michael Lee
topic: Epidemiology: The Study of Disease Spread
grade: 10
subject: Science
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