Figure 1

Whole-genome multilocus sequence typing (wgMLST) analysis of 61 Salmonella enterica serovar Thompson genomes. (a) Branches corresponding to outbreak isolates in 2014, 2015, and 2018 are shown in red, green, and purple, respectively, using an unweighted pair group method with an arithmetic-means-based tree. White squares represent strains obtained from the NCBI. (b) Circles corresponding to outbreak isolates in 2014, 2015, and 2018 are shown in red, green, and purple, respectively, in a minimum spanning tree. White rings represent strains obtained from the NCBI. The numbers on branches indicate wgMLST distances between isolates. Figure was generated using BioNumerics v. 8.0 (https://www.applied-maths.com/).