Phylogenetic tree analysis of SARS-CoV-2 based on full genome nucleotide sequences using the neighbor-joining tree. Values on branches are shown as percentages based on 1,000 bootstrap replicates. (A) Gene analysis of SARS-CoV-2 and other coronaviruses, (B) gene analysis of SARS-CoV-2 and BetaCoV/Korea/KCDC03/2020.