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SNP alignment of 43 isolates based on their SNP site locations. *Isolate 8-1-1950 was used as a reference strain in the SNP alignment. Strain number, MLST (ST) number, GPSC number, and the PBP profile have been added to each strain. Fifty-three isolates are not presented in the figure, as they showed identical profiles to isolate 114–2014. For complete tree, see supplementary Figure 1
