character: Dr. Emily Johnson
topic: Introduction to Immunology
grade: 10
subject: Biology
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character: Dr. Sarah Lee
topic: Basics of the Immune System
grade: 10
subject: Biology
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character: Mr. John Smith
topic: Overview of Antibodies
grade: 10
subject: Biology
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character: Ms. Lisa Ray
topic: Vaccines and Immune Response
grade: 10
subject: Biology
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