character: Professor Alan Johnson
topic: How Vaccines Help White Blood Cells in Infection Defense
grade: 9
subject: Science
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character: Dr. Emily Carter
topic: The Role of Antibodies in Immune Response
grade: 9
subject: Science
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character: Mr. James Reynolds
topic: Understanding the Immune System: White Blood Cells Explained
grade: 9
subject: Science
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character: Ms. Sarah Williams
topic: Vaccination and Herd Immunity: Protecting Communities
grade: 9
subject: Science
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