character: Liam
topic: How Vaccines Work: The Immune System's Defense Strategy
grade: 9
subject: Biology
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character: Dr. Nicole
topic: The Role of White Blood Cells in Immune Response
grade: 9
subject: Biology
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character: Sarah
topic: Understanding Antibodies and Their Function
grade: 9
subject: Biology
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character: Mr. Thompson
topic: The History of Vaccination and Its Impact on Public Health
grade: 9
subject: Biology
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