character: Mr. John Smith
topic: How the Immune System Fights Infections
grade: 9
subject: Science
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character: Dr. Emily Thompson
topic: Understanding White Blood Cells in the Immune Response
grade: 9
subject: Science
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character: Ms. Sarah Johnson
topic: Antibodies: The Immune System's Defenders
grade: 9
subject: Science
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character: Mr. Tom Harris
topic: Vaccination: Training the Immune System
grade: 9
subject: Science
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