Since December 2019, a number of cases of pneumonia with fever, cough, and dyspnea as clinical manifestations have been found in Wuhan, Hubei Province, China [1]. The analysis of the whole genome sequence of the respiratory samples suggests that it is a new type of betacoronavirus [2], which resembled severe acute respiratory syndrome coronavirus (SARS-CoV) [3]. On February 11, 2020, the World Health Organization (WHO) officially named it coronavirus disease (COVID-19).