character: Dr. John Smith
topic: Immunology and Public Health
grade: 9
subject: Science
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character: Dr. Jane Doe
topic: Vaccine Development and Efficacy
grade: 9
subject: Science
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character: Dr. Emily Johnson
topic: Epidemiology and Disease Prevention
grade: 9
subject: Science
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character: Dr. Robert Brown
topic: Infectious Diseases and Public Awareness
grade: 9
subject: Science
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