Figure 1: Phylogenetic tree including 95 clinical isolates (plus 3 reference strains) of M. abscessus. White circles indicate M. abscessus subsp. massiliense; gray circles indicate M. abscessus subsp. abscessus; black circles indicates M. abscessus subsp. bolletii; the dotted boxes highlight the dominating clone of M. abscessus subsp. abscessus. Numbers on branches indicate the number of distinct single nucleotide polymorphism positions between isolates. Same-patients isolates are indicated by unique two-letters identifiers followed by a number featuring the isolation order.