Clusters and unique M. tuberculosis strains determined by spoligotyping method and distribution of spoligotyping-defined phylogenetic clades.

NOTE: Filled square indicates “spacer present” in the DR region, non-filled square means “spacer deleted”.*Number of isolates with the same spoligotype;**Where shown, numbers in brackets indicate the “Shared-type number (SIT) of the SpolDB4/SITVIT database, in case the corresponding spoligotype was not represented in SpolDB4, the field was left empty.