Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2006 Sep;12(9):1406-13.
doi: 10.3201/eid1209.041263.

Differentiation of tuberculosis strains in a population with mainly Beijing-family strains

Affiliations

Differentiation of tuberculosis strains in a population with mainly Beijing-family strains

Vladyslav Nikolayevskyy et al. Emerg Infect Dis. 2006 Sep.

Abstract

A high prevalence of tuberculosis (TB) isolates that are genetically homogenous and from the Beijing family has been reported in Russia. To map TB transmission caused by these strains, new genotyping systems are needed. Mycobacterial interspersed repetitive units (MIRUs) offer the possibility of rapid PCR-based typing with comparable discrimination to IS6110 restriction fragment length polymorphism techniques. Spoligotyping and detection of IS6110 insertion in the dnaA-dnaN region were used to identify Beijing strains in 187 Mycobacterium tuberculosis isolates from Samara, Russia. The Beijing isolates were analyzed by using 12-MIRU and 3-exact tandem repeats (ETR) loci and by an expanded set of 10 additional variable number tandem repeats loci. The expanded set of 25 MIRUs provided better discrimination than the original set of 15 (Hunter-Gaston diversity index 0.870 vs. 0.625). Loci MIRU 26, 1982, and 3232 were the most polymorphic in Beijing isolates.

PubMed Disclaimer

Figures

Figure
Figure
PCR analysis of VNTR3232 locus. Lane 1, 2 repeats; lane 2, 3 repeats; lane 3, 4 repeats; lane 4, 6 repeats; lane 5, 7 repeats; lane 6, 10 repeats; lane 7, 11 repeats; lane 8, 12 repeats; lane 9, 13 repeats; lane 10, 14 repeats; lane 11, 15 repeats; lane 12, 16 repeats; lane 13, 17 repeats; lane 14, 20 repeats. Lanes 1–5, strains other than Beijing; lanes 6–14, Beijing strains. M, molecular weight markers.

Similar articles

Cited by

References

    1. Raviglione MC. The TB epidemic from 1992 to 2002. Tuberculosis (Edinb). 2003;83:4–14. 10.1016/S1472-9792(02)00071-9 - DOI - PubMed
    1. Yerokhin VV, Punga VV, Rybka LN. Tuberculosis in Russia and the problem of multiple drug resistance. Ann N Y Acad Sci. 2001;953:133–7. 10.1111/j.1749-6632.2001.tb11370.x - DOI - PubMed
    1. Shilova MV. Specific features of the spread of tuberculosis in Russia at the end of the 20th century. Ann N Y Acad Sci. 2001;953:124–32. 10.1111/j.1749-6632.2001.tb11369.x - DOI - PubMed
    1. Drobniewski FA, Balabanova YM. The diagnosis and management of multiple-drug-resistant tuberculosis at the beginning of the new millennium. Int J Infect Dis. 2002;6(Suppl.1):S21–31. 10.1016/S1201-9712(02)90151-7 - DOI - PubMed
    1. UNAIDS. 2004 Report of the global AIDS epidemic. Geneva: UNAIDS; 2004.

Publication types