character: Professor Mark Johnson
topic: Epidemiology and Disease Prevention
grade: 9
subject: Biology
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character: Dr. Sarah Thompson
topic: Community Health and Epidemiology
grade: 9
subject: Biology
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character: Professor Emily Carter
topic: Biostatistics in Disease Control
grade: 9
subject: Biology
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character: Dr. David Lee
topic: Infectious Disease Management
grade: 9
subject: Biology
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