Figure 1.

Spoligotypes shared by Pakistani M. tuberculosis isolates. ^a Genotypes as identified in SpolDB4.0 including related Orphan-Pak clusters. ^b Rules as defined by absence of spacers (3). ^c Filled boxes represent positive hybridization while empty boxes represent absence of spacers. ^d Number of isolates. ^e Orphan Pak clusters not identified as genotype of any phylogenetic lineage.