character: Dr. Emily Carter
topic: Vaccines and Herd Immunity
grade: 10
subject: Biology
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character: Dr. James Smith
topic: Vaccine Development and Safety
grade: 10
subject: Biology
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character: Dr. Sarah Lee
topic: The Importance of Herd Immunity in Populations
grade: 10
subject: Biology
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character: Professor Michael Chen
topic: Understanding the Immune System and Vaccination
grade: 10
subject: Biology
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