character: Dr. Emily Chen
topic: Antigens and How They Trigger Immune Responses
grade: 9
subject: Biology
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character: Dr. John Smith
topic: The Role of Antibodies in the Immune System
grade: 9
subject: Biology
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character: Ms. Sarah Lee
topic: Understanding Immune Response: Innate vs. Adaptive Immunity
grade: 9
subject: Biology
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character: Prof. Michael Brown
topic: Vaccines and Their Mechanisms: How Antigens Stimulate Immunity
grade: 9
subject: Biology
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