character: National Institute of Health (NIH)
topic: Research on COVID-19 Transmission and Prevention
grade: 9
subject: Science
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character: Centers for Disease Control and Prevention (CDC)
topic: Guidelines for COVID-19 Health and Safety
grade: 9
subject: Science
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character: World Health Organization (WHO)
topic: Global Strategies for Infectious Disease Prevention
grade: 9
subject: Science
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character: Johns Hopkins University
topic: COVID-19 Research and Data Analysis
grade: 9
subject: Science
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