character: Dr. Immuno
topic: Understanding the Immune Response to Vaccines
grade: 9
subject: Science
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character: Vaccine Guru
topic: How Vaccines Train the Immune System
grade: 9
subject: Science
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character: Professor Cell
topic: Types of Immune Cells and Their Functions
grade: 9
subject: Science
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character: Doctor Antibody
topic: The Role of Antibodies in Vaccine Efficacy
grade: 9
subject: Science
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