character: Ms. Sarah White
topic: Vaccines and Herd Immunity
grade: 10
subject: Biology
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character: Dr. Emily Thompson
topic: The Role of Vaccines in Public Health
grade: 10
subject: Biology
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character: Professor Mark Lee
topic: Understanding Herd Immunity in Populations
grade: 10
subject: Biology
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character: Nurse Jessica Green
topic: Vaccination Programs and Community Health
grade: 10
subject: Biology
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