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Fig. 2 | BMC Microbiology

Fig. 2

From: Whole genome sequencing analyses of Listeria monocytogenes that persisted in a milkshake machine for a year and caused illnesses in Washington State

Fig. 2

Maximum likelihood phylogeny of outbreak-associated isolates based on single nucleotide polymorphisms (SNPs) identified by the Center for Food Safety and Applied Nutrition (CFSAN) SNP Pipeline using CFSAN004336 for comparison. The tree is rooted at midpoint. Isolate ID is followed by sample type and collection year and abbreviation of month. The isolates that persisted in the milkshake maker until November 2015 and the clinical isolate collected in November 2015 are in blue color. The isolates collected in March and April 2015 were from ice cream processing facilities, not the hospital milkshake maker

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