character: Dr. Emma Lawson
topic: Understanding Viruses: Structure and Function
grade: 9
subject: Science
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character: Professor Mark Reynolds
topic: The Immune Response: How the Body Fights Infection
grade: 9
subject: Science
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character: Researcher Maya Chen
topic: Pathogen Types: Bacteria vs. Viruses
grade: 9
subject: Science
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character: Scientist Leo Martinez
topic: Vaccination: Training the Immune System
grade: 9
subject: Science
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