character: Mr. David Smith
topic: The Immune System: Its Role in Disease Prevention
grade: 11
subject: Science
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character: Dr. Sarah Johnson
topic: Understanding Vaccination and Immune Response
grade: 11
subject: Science
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character: Ms. Emily Clark
topic: Pathogens and the Immune System's Response
grade: 11
subject: Science
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character: Mr. Robert Lee
topic: Autoimmune Diseases and Immune System Malfunctions
grade: 11
subject: Science
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