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M. abscessus phylogeny. Phylogenetic relationships of M. abscessus clinical isolates based on 3,682,630 (78%) conserved nucleotide positions in all strains. Subspecies are shaded blue, green, and red for M. abscessus subsp. abscessus, M. abscessus subsp. bolletii, and M. abscessus subsp. massiliense, respectively. The rough (R) or smooth (S) morphotype is indicated after the strain name. Scale corresponds to 0.1 substitutions per position.
