Figure 2. Maximum-likelihood tree showing MERS-CoV isolates from South Korea, September 2018 (black dot), and reference MERS-CoV genomes. Tree estimated using RAxML values (https://github.com/stamatak/standard-RAxML) on branches are shown as percentages based on 1,000 bootstrap replicates from the nucleotide sequences. MERS-CoV, Middle East respiratory syndrome coronavirus. Scale bar indicates nucleotide substitutions per site.