Fig. 1
From: On the onset and dispersal of a major MDR TB clone among HIV-negative patients, Tunisia
Core genome Minimum spanning tree (cgMLST) based on the concatenated sequences of the 690 polymorphic sites determined by WGS analysis. A cut-off of 5 SNPs has been used for the clustering of recently linked cases. Different colours are assigned to clusters according to DST a or Origin b Numbers correspond to SNP differences between two nodes in the tree