Fig. 2
Genotyping analysis of the two genetic variants isolated from the outbreak. Minimum Spanning Tree based on MLST alleles constructed using categorical coefficient with the tdh+/trh+ outbreak strain includes into the ST 36 group with strains characteristic of the Pacific Northwest of North America and the second outbreak strain tdh-/trh+ with a novel ST uniquely associated with ST 417 strains, other genetic variant endemic for the Pacific NW of North America; each circle represent a different ST, the size of the circle reflects the number of isolates, numbers in branches indicate the number of loci with different alleles and orange areas designate clonal complex by Bionumerics grouping genotypes differing in a maximum of two loci