Solomennyi, A.P., Maksimov, A.Yu., Saralov, A.I., Yafaev, R.Kh., Goncharov, A.E., Keropian, E.A., Multykh, I.G.

Emergence of the integron-positive multi-drug resistant strain of Acinetobacter baumanii in Russian hospitals

Institute of Ecology and Genetics of Microorganisms, Perm; State Medical Academy, Saint Petersburg; City Hospital No. 2, Krasnodar, Russia

Aim. To detect the integron-positive strains among nosocomial Acinetobacter spp. and to determine their relationship on the genotype level. Materials and methods. Amplification by polymerase chain reaction using primers specific to sequences of the class 1 and 2 intergrons on the genomic DNA template followed by restriction fragments length polymorphism analysis as well as RAPD-genotyping of the integron-positive strains were performed. Results. Fact of spreading of Acinetobacter baumanii strain containing class 1 integron in medical centers was established. The composition of the integron’s gene cassettes was analogous to worldwide (including epidemic) types. Conclusion. Molecular genetic analysis of the mobilized structures (integrons) under the standardization of used approaches are suitable for the surveillance for circulation of epidemic strains of nosocomial pathogens.
Zh. Mikrobiol. (Moscow), 2008, No. 4, P. 89—91