Abstract
Clinical characteristics of 33 asymptomatic COVID-19 infections were analyzed in this study. The data showed most of asymptomatic patients had small body mass index, good prognosis and low infectivity. This study suggests that screening from high-risk populations to find and isolate asymptomatic patients is an important disease prevention and control strategy for COVID-19.
Highlights
Coronavirus disease 2019 (COVID-19) outbreak has raised serious international concerns [1, 2]
We reported the clinical features of 33 retrospectively collected asymptomatic patients with confirmed COVID-19 infection from Wuhan, a most seriously infected city of China
We collected the following information from the medical records, accompanied with interview with the patients: the demographic information, including age, gender, body mass index (BMI), family clustering, clinical features
Summary
Coronavirus disease 2019 (COVID-19) outbreak has raised serious international concerns [1, 2]. By June 3, 2020, there are more than six million confirmed cases of the COVID-19 and more than 300 thousand deaths globally [3]. With the largescale, high-intensity screening approaches, symptomatic patients are being quickly diagnosed, while more and more asymptomatic cases are identified [7]. The clinical features and infectivity of asymptomatic carriers remain an urgent public health issue. According to the epidemiology report from Chinese Center for Disease Control and Prevention, there were 889 asymptomatic COVID-19 infected patients among 44,672 laboratory-confirmed cases, accounting for 2.0% of the total confirmed cases [8]. It is critically important to know about features of asymptomatic COVID-19 patients to guide screening strategies. We reported the clinical features of 33 retrospectively collected asymptomatic patients with confirmed COVID-19 infection from Wuhan, a most seriously infected city of China
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