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Phylogeny of S. enterica serovar Typhimurium and its monophasic variants in Japan and Italy, isolated between 1984 and 2014. A phylogenetic tree was generated using the maximum likelihood method with 6,205 concatenated SNPs in the core genome sequences of 119 wild-type and 12 reference strains; hierBAPS clustering, sequence type, serotype, country, and source are indicated at right. Detailed information for each isolate is provided in Table S2.
