character: Nurse Emily Davis
topic: Understanding Pathogens and How the Body Fights Them
grade: 9
subject: Science
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character: Dr. John Smith
topic: Immune Response and Its Mechanisms
grade: 9
subject: Science
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character: Professor Lisa Chen
topic: Types of Pathogens and Their Effects on Health
grade: 9
subject: Science
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character: Researcher Alan Wong
topic: Vaccines and How They Protect the Body
grade: 9
subject: Science
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