Figure 1. Mycobacterium tuberculosis complex lineages as determined by Gagneux et al. (6) and Baker et al. (7) defined by mycobacterial interspersed repetitive unit codes. MBOV, M. bovis; LAM, Latin American; CAS, Central Asian; EAI, East African–Indian; BCG, bacillus Calmette-Guérin; MAFR, M. africanum. The X, T, LAM, S, and Haarlem families are European American types.