Volume 19, Number 5—May 2013
CME ACTIVITY - Research
Transmission of Mycobacterium tuberculosis Beijing Strains, Alberta, Canada, 1991–2007
Figure

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.