The discriminatory power of each VNTR and all 6
VNTRs combined was measured by Simpson’s Index of
Diversity (D). The highest D value was 0.957 and was
recorded for vca0283. Except for vca0283 and vca0171, all
D values were lower than previously reported. Our focus
on 7th pandemic isolates which have been shown to be
highly homogeneous may have contributed to these lower
D values. VNTR vc1457 had the lowest D value of 0.437