character: Dr. Paul Simmons
topic: Types of Vaccines and Their Efficacy
grade: 11
subject: Science
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character: Dr. Sarah Johnson
topic: Immunology and Vaccine Development
grade: 11
subject: Science
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character: Dr. Emily Chen
topic: Comparative Efficacy of mRNA and Traditional Vaccines
grade: 11
subject: Science
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character: Dr. Mark Thompson
topic: Public Health Impact of Vaccination Programs
grade: 11
subject: Science
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