key: cord-0894881-xwvtjm6s
authors: Ma, Yan; Xu, Qing-nan; Wang, Feng-li; Ma, Xiao-man; Wang, Xiao-yan; Zhang, Xiao-guo; Zhang, Zhong-fa
title: Characteristics of asymptomatic patients with SARS-CoV-2 infection in Jinan, China
date: 2020-05-07
journal: Microbes Infect
DOI: 10.1016/j.micinf.2020.04.011
sha: 4add3adc860985dc0083ea61e42a24e0b05ca87b
doc_id: 894881
cord_uid: xwvtjm6s

Abstract Coronavirus Disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) is continuously and rapidly circulating at present. Asymptomatic patients have been proven to be contagious and thus pose a significant infection control challenge. Here we describe the characteristics of asymptomatic patients with SARS-CoV-2 infection in Jinan, Shandong province, China. A total of 47 patients with confirmed COVID-19 were recruited. Among them, 11 patients were categorized as asymptomatic cases. We found that the asymptomatic patients in Jinan were relatively young and were mainly clustered cases. The laboratory indicators and lung lesion on chest CT were mild. No special factors were found accounting for the presence or absence of symptoms. The presence of asymptomatic patients increased the difficulty of screening. It is necessary to strengthen the identification of such patients in the future.

of such patients in the future.

Keywords: SARS-CoV-2; COVID-19; asymptomatic; characteristics 24 1. Introduction 25 Since an outbreak of COVID-19 in Wuhan and related regions in 26 Hubei province [1] [2] [3] [4] [5] , an increasing number of exported cases have been in Table 1 . symptoms were fever (28, 77.8%), followed by dry cough (17, 47.2%), 104 expectoration (4, 11.1%), fatigue (4, 11.1%), sore throat (4, 11.1%), 105 myalgia (4, 11.1%), headache (2, 5.6%), and coryza (1, 2.8%). The 106 detailed clinical characteristics were found in Table 2 and 3. 

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