character: Mr. Johnson
topic: Cellular Responses to Infection
grade: 9
subject: Science
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character: Ms. Smith
topic: Immune System Overview
grade: 9
subject: Science
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character: Dr. Lee
topic: Pathogen Identification and Response
grade: 9
subject: Science
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character: Mrs. Patel
topic: The Role of White Blood Cells in Immunity
grade: 9
subject: Science
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