Figure 2. Schematic representations of the timeline and epidemiologic links of the MDR Mycobacterium tuberculosis outbreak with strain Ch, Chaco, Argentina, 2006–2022. Two subclusters were defined according to the phylogenetic analysis (Figure 1). The symbols represent epidemiologic events. Patients represented with squares were identified as part of the outbreak after comprehensive epidemiologic research in the light of the genomic results (Appendix 2). They had received a clinical diagnosis, and the drug susceptibility profiles were not available. Dot colors represent the drug-resistance status and the mutation found. The exact date of the events indicated with a question mark is unknown. Black arrow indicates administration of bedaquiline to patient 10, and the red arrow indicates implementation of phenotypic drug-susceptibility testing for that drug in Argentina. MDR, multidrug resistant; WGS NA, whole-genome sequence not available; XDR, extensively multidrug resistant.