Viral Transmission and Clinical Features in Asymptomatic Carriers of SARS-CoV-2 in Wuhan, China

We report the clinical characteristics, viral shedding duration, and contact tracing for asymptomatic carriers of SARS-CoV-2 in Wuhan, China. The asymptomatic carriers were relatively young (median age: 34.5 years). Chest computed tomography showed no abnormalities. The nasopharyngeal swab was an op...

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Main Authors: Fen Tan, Kaige Wang, Jiasheng Liu, Dan Liu, Jianfei Luo, Rui Zhou
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-08-01
Series:Frontiers in Medicine
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fmed.2020.00547/full
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author Fen Tan
Kaige Wang
Jiasheng Liu
Dan Liu
Jianfei Luo
Rui Zhou
author_facet Fen Tan
Kaige Wang
Jiasheng Liu
Dan Liu
Jianfei Luo
Rui Zhou
author_sort Fen Tan
collection DOAJ
description We report the clinical characteristics, viral shedding duration, and contact tracing for asymptomatic carriers of SARS-CoV-2 in Wuhan, China. The asymptomatic carriers were relatively young (median age: 34.5 years). Chest computed tomography showed no abnormalities. The nasopharyngeal swab was an optimum specimen for RNA testing. The median viral shedding duration was 11.5 days. Notably, 2 months of viral shedding duration were reported in two nurses, which was much longer than previously reported or than usually thought. The transmissibility of SARS-CoV-2 by asymptomatic carriers during the studied period in Wuhan appeared to be weak. Only one patient (1/12) was found to have transmitted the virus to another person. Early asymptomatic carrier detection, isolation, and contact tracing could be useful to mitigate the spread of the disease.
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spelling doaj.art-57e1fd542cd7415a8eff3ec5d6b5bff72022-12-22T00:52:33ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2020-08-01710.3389/fmed.2020.00547554707Viral Transmission and Clinical Features in Asymptomatic Carriers of SARS-CoV-2 in Wuhan, ChinaFen Tan0Kaige Wang1Jiasheng Liu2Dan Liu3Jianfei Luo4Rui Zhou5Department of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital, Respiratory Disease Research Institute of Hunan Province, Central South University, Changsha, ChinaDepartment of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Gastrointestinal Surgery, Renmin Hospital of Wuhan University, Wuhan, ChinaDepartment of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Gastrointestinal Surgery, Renmin Hospital of Wuhan University, Wuhan, ChinaDepartment of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital, Respiratory Disease Research Institute of Hunan Province, Central South University, Changsha, ChinaWe report the clinical characteristics, viral shedding duration, and contact tracing for asymptomatic carriers of SARS-CoV-2 in Wuhan, China. The asymptomatic carriers were relatively young (median age: 34.5 years). Chest computed tomography showed no abnormalities. The nasopharyngeal swab was an optimum specimen for RNA testing. The median viral shedding duration was 11.5 days. Notably, 2 months of viral shedding duration were reported in two nurses, which was much longer than previously reported or than usually thought. The transmissibility of SARS-CoV-2 by asymptomatic carriers during the studied period in Wuhan appeared to be weak. Only one patient (1/12) was found to have transmitted the virus to another person. Early asymptomatic carrier detection, isolation, and contact tracing could be useful to mitigate the spread of the disease.https://www.frontiersin.org/article/10.3389/fmed.2020.00547/fullSARS-CoV-2COVID-19asymptomatic carriertransmission abilityclinical features
spellingShingle Fen Tan
Kaige Wang
Jiasheng Liu
Dan Liu
Jianfei Luo
Rui Zhou
Viral Transmission and Clinical Features in Asymptomatic Carriers of SARS-CoV-2 in Wuhan, China
Frontiers in Medicine
SARS-CoV-2
COVID-19
asymptomatic carrier
transmission ability
clinical features
title Viral Transmission and Clinical Features in Asymptomatic Carriers of SARS-CoV-2 in Wuhan, China
title_full Viral Transmission and Clinical Features in Asymptomatic Carriers of SARS-CoV-2 in Wuhan, China
title_fullStr Viral Transmission and Clinical Features in Asymptomatic Carriers of SARS-CoV-2 in Wuhan, China
title_full_unstemmed Viral Transmission and Clinical Features in Asymptomatic Carriers of SARS-CoV-2 in Wuhan, China
title_short Viral Transmission and Clinical Features in Asymptomatic Carriers of SARS-CoV-2 in Wuhan, China
title_sort viral transmission and clinical features in asymptomatic carriers of sars cov 2 in wuhan china
topic SARS-CoV-2
COVID-19
asymptomatic carrier
transmission ability
clinical features
url https://www.frontiersin.org/article/10.3389/fmed.2020.00547/full
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