ramming.

1  Introduction
2019-novel coronavirus (2019-nCov) outbreak took place in December 2019 and continues to spread around the world. By April 3, 2020, more than 1 million patients have been diagnosed with corona virus disease 2019 (COVID-19) [1]. The virus has a long incubation period, is highly contagious, and is generally susceptible to all types of people, which has a huge negative impact on people's health, economic development, and social stability [2]. However, there is still a lack of effective clinical drugs or vaccine to control the virus.
Traditional Chinese medicine has a good effect on viral infectious pneumonia and has shown a certain effect in the treatment of SARS. On February 7, 2020, the China Health Commission and the Administration of Traditional Chinese Medicine jointly issued a notice recommending formula Qingfei Paidu decoction (QFPD, Herba Ephedrae, Radix Glycyrrhizae, Semen Armeniacae Amarum, Gypsum Fibrosum, Ramulus Cinnamomi, Rhizoma Alismatis, Polyporus Umbellatus, Rhizoma Atractylodis Macrocephalae, Poria, Radix Bupleuri, Radix Scutellariae, Rhizome Pinelliae Preparata, Rhizoma Zingiberis