No abstract available
MeSH terms
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Adult
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Antibodies, Viral / blood*
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COVID-19 / diagnosis
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COVID-19 / epidemiology*
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COVID-19 Serological Testing
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Cross-Sectional Studies
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Emergency Service, Hospital*
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Female
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Humans
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Male
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Medical Staff, Hospital / statistics & numerical data*
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Middle Aged
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Nursing Staff, Hospital / statistics & numerical data*
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Prospective Studies
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SARS-CoV-2 / immunology*
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Seroepidemiologic Studies