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Maximum-likelihood phylogeny following masking of recombination of 438 S. pyogenes sequences. This included 117 internationally characterized sequences from invasive and non-invasive disease cases that were collected across nine countries. Associated metadata are depicted by coloured tiles next to the tree as indicated in the key. Only MLST and emm-types that represented ~5 % of the dataset and occurred in more than 1 year are shown. Scale bar shows phylogenetic distance.
