Deanne Langlois-Klassen, Ambikaipakan Senthilselvan, Linda Chui, Dennis Kunimoto, L. Duncan Saunders, Dick Menzies, and Richard Long
Figure. . . Number of clustered and nonclustered cases according to Mycobacterium tuberculosis lineage among foreign-born persons and time since arrival in Alberta, Canada, 1991–2007. A) Beijing cases; B) Non-Beijing cases. Gray bars, nonclustered cases; black bars, clustered cases.