Figure 1

Spoligotype pattern of clustered M. tuberculosis strains in the study. ^aAs identified in SpolDB4.0; SIT, spoligotype international type; N^b, number of isolates (as a percentage of total M. tuberculosis strains in the study); ^cfilled boxes represent positive hybridization while empty boxes represent absence of spacers; ^dlabel defining the lineage/sub lineage; ND, not yet determined in SpolDB4.0.