character: Dr. Emily Carter
topic: Vaccination and Public Health
grade: 12
subject: Biology
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character: Dr. Sarah Thompson
topic: Immunology and Disease Prevention
grade: 12
subject: Biology
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character: Dr. Michael Lewis
topic: Herd Immunity and Community Health
grade: 12
subject: Biology
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character: Dr. Jessica Wang
topic: Vaccine Development and Safety
grade: 12
subject: Biology
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