摘要
Since December 2019,just a month before the Chinese Spring Festival,multiple cases of pneumonia of unknown etiology appeared in Wuhan,Hubei Province,China.Later,a novel coronavirus was identified in a bronchoalveolar lavage fluid sample from the Wuhan Seafood Market using metagenomic next-generation sequencing technology.1 On February 11,2020,the virus was named severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)by the International Committee on Taxonomy of Viruses(ICTV).SARS-CoV-2 is the seventh member of the coronavirus family that can infect humans after the emergence of severe acute respiratory syndrome coronavirus(SARS-CoV)and Middle East respiratory syndrome coronavirus(MERS-CoV).
