SARS - CoV - 2 is pandemic in the whole world,and has caused a large population suffered from COVID - 19,which pose a serious threat to human life and health. There is no specific medicine or vaccine for COVID - 19,so laboratory diagnosis methods for COVID - 19 play a very important role in the prevention and control of the epidemic situation. Laboratory -based detection methods for SARS -CoV - 2 include isolation and culture of SARS - CoV - 2,real - time quantitative polymerase chain reaction,loop - mediated isothermal amplification, clustered regularly interspaced short palindromic repeats (...