Figure 2. Logo analysis on nine different spoligotypes observed for Mycobacterium tuberculosis isolates from Vietnam-born patients in Massachusetts demonstrating fewer than six copies of IS6110 by RFLP analysis. Legend: x= hybridization observed to spacer, o= no hybridization observed to spacer, ■= positive hybridization in every spoligotype pattern for that individual spacer sequence, □= no hybridization, ●=positive hybridization in >50% of the patterns, ○= no hybridization in >50% of the patterns.
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