[molecular mechanisms of cephalosporin resistance in gram-negative bacteria of the enterobacteriaceae family].extended spectrum beta lactamase genes were detected by the pcr in 87.6% of 231 enterobacteriaceae strains isolated in medical institutions of moscow, st. petersburg, tomsk and nazran that showed a decrease in their susceptibility to 3rd generation cephalosporins. alone or in various combinations tem type beta lactamases were detected in 43.3% of the isolates, 46.8 and 51.2% of the isolates produced shv type and ctx type beta lactamases respectively. combinations of 2 and 3 different determinant ...200415344391
the spread of bla oxa-48 and bla oxa-244 carbapenemase genes among klebsiella pneumoniae, proteus mirabilis and enterobacter spp. isolated in moscow, russia.the spread of carbapenemase-producing enterobacteriaceae (cpe) is a great problem of healthcare worldwide. study of the spread for bla oxa-48-like genes coding epidemically significant carbapenemases among hospital pathogens is important for the regional and global epidemiology of antimicrobial resistance.201526526183
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