No abstract available
MeSH terms
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COVID-19* / epidemiology
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COVID-19* / prevention & control
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COVID-19* / transmission
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Case-Control Studies
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Disease Transmission, Infectious* / prevention & control
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Disease Transmission, Infectious* / statistics & numerical data
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Emergency Service, Hospital* / statistics & numerical data
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Emergency Service, Hospital* / trends
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Female
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Humans
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Infection Control / organization & administration*
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Male
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Middle Aged
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Risk Assessment* / methods
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Risk Assessment* / statistics & numerical data
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Risk Management / organization & administration
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SARS-CoV-2* / isolation & purification
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SARS-CoV-2* / pathogenicity
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United States / epidemiology