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Coronavirus disease 2019 (COVID-19) emerged in Wuhan, China, in December 2019 and has spread globally with sustained human-to-human transmission outside China.1,2 To control the spread of COVID-19 and isolate patients as early as possible, the Chinese government requested that close contacts of individuals with COVID-19 must be screened for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. During the screening process, we found some patients whose test results were positive for SARS-CoV-2 but who had no symptoms or signs throughout the course of the disease. Considering that little is known about the differences of clinical features and prognosis between patients who were asymptomatic vs those who were symptomatic,3,4 this case series aimed to describe the clinical characteristics of patients with SARS-CoV-2 infection confirmed by reverse transcription–polymerase chain reaction (RT-PCR) from 26 transmission cluster series in Wuhan, China, from December 24, 2019, to February 24, 2020.
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Accepted for Publication: May 1, 2020.
Published: May 27, 2020. doi:10.1001/jamanetworkopen.2020.10182
Correction: This article was corrected on June 26, 2020, to fix incorrect reporting of the statistics.
Open Access: This is an open access article distributed under the terms of the CC-BY License. © 2020 Yang R et al. JAMA Network Open.
Corresponding Author: Yong Xiong, Department of Infectious Diseases, Zhongnan Hospital, Wuhan University, Donghu Road 169, Wuchang District, Wuhan city 430071, Hubei Province, China (email@example.com).
Author Contributions: Drs Yang and Xiong had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Concept and design: Yang, Xiong.
Acquisition, analysis, or interpretation of data: Yang, Gui.
Drafting of the manuscript: Yang.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Yang.
Obtained funding: Xiong.
Administrative, technical, or material support: Yang, Xiong.
Supervision: All authors.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by Grant No. TFJC2018002 from the Medical Science Advancement Program (Basical Medical Sciences) of Wuhan University.
Role of the Funder/Sponsor: The funder had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
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