this novel coronavirus, and have been testing multiple drugs to screen effective therapy.

1.2  Current situation of the epidemic
Until February 6, 2020, confirmed 2019-nCoV pneumonia cases were increasing with worrisome speed in China. As of 5th February, there were 24,377 cases confirmed in mainland China, including 492 deaths, 3219 severe cases, and 901 cured cases [6]. The fatality rate was about 2%. In addition, 175 cases of 2019-nCoV infection were confirmed in 24 other countries arou