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Phylogenetic tree of 281 NG-STAR STs constructed using MEGA 11. The external color trips that range from inner to outer are as follows: trip 1, mosaic or nonmosaic penA allele, crimson, mosaic penA, cadet blue, nonmosaic penA; trip 2, bar chart showing number of isolates in each ST; trip 3, number of Cro-R isolates in each ST; trip 4, number of Azi-R isolates in each ST. STs indexed in the main text were indicated with arrows outside trips.
