Fig. 1From: Molecular characterization, antibiotic resistance pattern and capsular types of invasive Streptococcus pneumoniae isolated from clinical samples in Tehran, IranMinimum spanning tree of MLST sequence types of S. pneumoniae constructed by PHYLOViZ 2.0. Green outlines indicate a group founder; light blue outlines indicate relatedness to founder; the STs are displayed as circles; Numbers indicate the number of differences between the MLST profiles of the two connected circles; capsular types are characterized by circles different colorsBack to article page