FIG 1.
ML phylogeny showing the relationships among all the isolates. The external circle provides the geographic location of the isolates, when available. Colored dots next to some strains denote the Mexican hospitals. International clones I and II are identified by orange and blue branches, respectively, whereas green branches indicate international clone V. Pink isolates show the ST758 lineage, while the three blue isolates (A023, A029, and H170) clustering within the pink isolates belong to ST1091. The presence of the blaoxa-239 gene is marked with purple triangles. The scale bar gives the number of substitutions per site.