Fig. 2

cgMLST minimum spanning tree of the three outbreaks as well as the five non-related strains detected during the same period. The strains belonging to outbreaks are shown with coloured outlines: first, red; second, green; third, blue. The final numbers of isolate names indicate the year of isolation, and index cases are indicated with *. In two cases MLST could not be defined, as single MLST targets were not found in the genomes. In two cases within outbreak one, the MLST was called as ST1478, a single locus variant from ST117 in pstS