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Phylogenetic tree showing nucleotide sequence clusters of the tested Escherichia albertii strains obtained using multi-locus sequence typing. ST383, ST413, ST95 and ST2819 were included as outgroups. Reference sequences were tested in a previous study [9]. Shigella boydii serotype 13 ATCC 12032 has been reclassified into the Escherichia albertii lineage. The scale bar indicates the number of nucleotide substitutions per site.
