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Core-genome SNP tree of isolates with spa t011 and spa t034 supplemented with strains from Denmark (Sieber et al. [26]). The strains can be seen to cluster according to spa type, with two exceptions. The Danish strains also cluster in our analysis according to the described lineages but for the most part separately from the Swiss strains. The scale bar indicates numbers of substitutions per site, and the numbers indicate bootstrap support.
