Phylogeographical distribution of <i>M. tuberculosis</i> lineages in neighboring countries.

<p>Colors of nodes depict the lineage of the strain. Note that the proportion of Ural lineage (notably Ural-1) is not negligible in the following countries: Russia, Latvia, Estonia, and Finland [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0085027#B11" target="_blank">11</a>].