Since mid-December 2019, there has been a worldwide outbreak of coronavirus disease (COVID)–19, caused by SARS-CoV-2 (formerly 2019-nCoV or HCoV-19) and first detected in Wuhan, China. The incubation period is 1-14 days (mean 5-6 days) in most cases but can be as long as 24 days. The most commonly seen characteristics of COVID-19 are fever, cough, and abnormal chest computed tomography. According to the World Health Organisation (WHO), the Johns Hopkins Center for Systems Science and Engineering, and the State Council Information Office in Beijing, China, as of April 12, 2020, there have been more than 1,800,000 cases of COVID-19 worldwide, with 83,597 cases of COVID-19 confirmed in China, including 2,101 active cases (121 active severe cases), 1378 imported cases, 3351 deaths (mortality rate 3.99%), and 78,145 recovered cases (cure rate 93.5%). Today, normal life is slowly returning in most regions in an orderly and cautious manner, including in Wuhan, the epicenter of the epidemic in China.