No abstract available
MeSH terms
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Adult
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Aged
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Antibodies, Viral / blood*
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Betacoronavirus / immunology
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Betacoronavirus / pathogenicity*
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COVID-19
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COVID-19 Testing
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China / epidemiology
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Clinical Laboratory Techniques / methods
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Cohort Studies
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Coronavirus Infections / diagnosis*
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Coronavirus Infections / epidemiology*
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Coronavirus Infections / immunology
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Female
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Humans
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Immunoglobulin G / blood*
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Immunoglobulin M / blood*
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Male
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Middle Aged
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Pandemics*
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Pneumonia, Viral / diagnosis*
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Pneumonia, Viral / epidemiology*
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Pneumonia, Viral / immunology
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SARS-CoV-2
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Severity of Illness Index
Substances
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Antibodies, Viral
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Immunoglobulin G
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Immunoglobulin M
Grants and funding
This work was supported by the Chongqing Special Research Project for Novel Coronavirus Pneumonia Prevention and Control under Grants (No. cstc2020jscx-fyzxX0005; cstc2020jscx-fyzxX0024).