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SARS-CoV-2 seroprevalence and transmission risk factors among high-risk close contacts: a retrospective cohort study
BACKGROUND: The proportion of asymptomatic carriers and transmission risk factors of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) among household and non-household contacts remains unclear. In Singapore, extensive contact tracing by the Ministry of Health for every diagnosed COVID-19...
Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier Ltd.
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7831879/ https://www.ncbi.nlm.nih.gov/pubmed/33152271 http://dx.doi.org/10.1016/S1473-3099(20)30833-1 |