摘要
Coronavirus disease 2019(COVID-19)has been a pandemic for more than a year.With the expanding second wave of the pandemic in winter,the continuous evolution of SARS-CoV-2 has brought new issues,including the significance of virus mutations in infection and the detection of asymptomatic infection.In this review,we first introduced several major SARS-CoV-2 mutations since the COVID-19 outbreak and then mentioned the widely used molecular detection techniques to diagnose COVID-19,primarily focusing on their strengths and limitations.We further discussed the effects of viral genetic variation and asymptomatic infection on the molecular detection of SARS-CoV-2 infection.The review finally summarized useful insights into the molecular diagnosis of COVID-19 under the special situation being challenged by virus mutation and asymptomatic infection.
基金
supported by the National Natural Science Foundation of China(project No.81970029)
Fundamental Research Funds for the Central Universities of China(The Emergency Projects on COVID-19,xzy032020042)
Qinnong Bank-XJTU special project for COVID-19(qnxjtu-12)。
