[MOLECULAR CHARACTERISTICS OF THE MULTIDRUG-RESISTANT MYCOBACTERIUM TUBERCULOSIS STRAINS IN THE NORTHWEST RUSSIA]

Mol Gen Mikrobiol Virusol. 2016;34(1):30-3.
[Article in Russian]

Abstract

The goal of this work was to study the genotypic characteristics of the multidrug-resistant (MDR, i.e., resistant to at least rifampicine and isoniazid) Mycobacterium tuberculosis strains isolated in 2011-2012 from tuberculosis (TB) patients in the Northwest Russia. Spoligotyping of 195 M. tuberculosis isolates identified 14 different spoligotypes and assigned isolates to the genetic families Beijing (n = 162, 83%), LAM (n = 15), H3/URAL (n = 14), as well as T, Haarlem and X. Spoligotypes SIT1 (Beijing), SIT42 (LAM) and SIT262 (H3/URAL) were the most prevalent. Irrespective to the genotype, all the isolates were resistant to streptomycin. The multidrug resistance was accompanied by the resistance to ethionamide (56%), amikacin (31%), kanamycin (40%), and capreomycin (33%). The ethambutol resistance was found in 71% (n = 115) and 42% (n = 14) of the Beijing and non-Beijing strains, respectively (p < 0.05). In conclusion, the multidrug resistant M. tuberculosis population circulating in the Northwest Russia continues to be dominated by the Beijing family strains.

Publication types

  • English Abstract
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Drug Resistance, Multiple, Bacterial / genetics*
  • Female
  • Humans
  • Male
  • Mycobacterium tuberculosis / genetics*
  • Mycobacterium tuberculosis / isolation & purification
  • Russia / epidemiology
  • Tuberculosis, Multidrug-Resistant / epidemiology
  • Tuberculosis, Multidrug-Resistant / genetics*