Figure 2. Phylogenetic tree of the different clades among 40 Enterobacter xiangfangensis ST14 isolates identified from Enterobacter spp. isolates collected in the Merck Study for Monitoring Antimicrobial Resistance Trends, 2008–2014, and the AstraZeneca global surveillance program, 2012–2014. The tree is rooted with E. hormaechei subsp. hormaechei isolate ATCC49162. A total of 317,867 core single-nucleotide polymorphisms were found; 27,705 were used to draw the tree (after phages and recombination sites were excluded). The isolates from other studies were negative for carbapenemases. KPC, Klebsiella pneumoniae carbapenemase; NDM, New Delhi metallo-β-lactamase; OXA, oxacillin; ST, sequence type; –, information missing. Scale bar indicates nucleotide substitutions per site.