Figure 2. Location of the 13 variant nucleotide positions identified in genomes of 8 Middle East respiratory syndrome coronavirus strains isolated during an outbreak in South Korea, 2015. Case-patient numbers are indicated on the left, as are GenBank accession numbers for 2 related strains. For each case, the top and bottom horizontal bars represent the genome sequence generated from the first and second samples, respectively. Letters indicate matching nucleotide positions between samples. Sample collection dates are shown in Table 1. E, small envelope gene; M, matrix gene; N, nucleocapsid gene; ORF, open reading frame.