Volume 26, Number 5—May 2020
Research
Possible Transmission Mechanisms of Mixed Mycobacterium tuberculosis Infection in High HIV Prevalence Country, Botswana
Figure 1

Figure 1. Mixed-strain infection MIRU-VNTR permutations and genotype cluster/noncluster examples of Mycobacterium tuberculosis (the Kopanyo Study), Botswana, 2012–2016. On the basis of mixed-strain MIRU-VNTR patterns, all possible permutations at each of multiple allele loci were considered. The MIRU-VNTR result of each strain in a possible permutation set was compared with that of all strains identified in the study. Assuming numbers of tandem repeats at other 19 loci are identical, 4 genomes (strains A–D) in the genotype cluster example (bottom left) have matched tandem repeats at the presented 5 loci of tandem repeats in the mixed-strain infection. Strains E and F in the genotype noncluster example have nonmatched tandem repeats at the second and third locus, respectively. MIRU-VNTR, mycobacterial interspersed repetitive unit–variable-number tandem-repeat.
1Current affiliation: Johns Hopkins University, Baltimore, Maryland, USA.
2These senior authors contributed equally to this article.