Fig. 4From: Whole genome sequencing analyses of Listeria monocytogenes that persisted in a milkshake machine for a year and caused illnesses in Washington StateMinimum spanning tree of outbreak-associated isolates based on 1827-cgMLST using CFSAN004336 for comparison. The allele differences between nodes are listed by the connection lines. The isolates collected in November 2015 are marked in light blue color. The prophage divergence and SNPs in lmo2631 and lmo2751 are indicated in the figureBack to article page