character: Alexander Fleming
topic: Discovery of penicillin
grade: 10
subject: Science
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character: Howard Florey
topic: Development of penicillin for widespread use
grade: 10
subject: Science
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character: Ernst Boris Chain
topic: Isolation of penicillin and antibiotic research
grade: 10
subject: Science
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character: Paul Ehrlich
topic: Early work on antibiotics and the magic bullet theory
grade: 10
subject: Science
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