character: Ms. Sarah Lee
topic: Understanding the Immune Response: Antigens and Antibodies
grade: 9
subject: Science
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character: Dr. Mike Johnson
topic: Introduction to Antigens: Key Players in Immune Defense
grade: 9
subject: Science
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character: Mr. David Chen
topic: Antibodies: Structure and Function in Immune Response
grade: 9
subject: Science
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character: Ms. Emily Smith
topic: The Role of Vaccines in Introducing Antigens to the Immune System
grade: 9
subject: Science
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