No credible evidence supporting claims of the laboratory engineering of SARS-CoV-2

摘要

According to what has been reported [1–3],COVID-2019 seems to have similar clinical manifestationsto that of the severe acute respiratory syndrome(SARS) caused by SARS-CoV. The SARS-CoV-2 genomesequence also has ～80% identity with SARSCoV,but it is most similar to some bat beta-coronaviruses,with the highest being 96% identity.