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By S. A. Egorova, L. A. Kaftyreva, L. V. Lipskaya, I. B. Konovalenko, M. F. Pyasetskaya, T. S. Kurchikova, N. B. Vedernikova, O. T. Morozova, M. V. Smirnova, L. N. Popenko, M. I. Lubushkina, J. A. Savochkina, M. A. Makarova, L. V. Suzhaeva, J. V. Ostankova, M. N. Ivanova, A. M. Pavelkovich, P. Naaber, E. Sepp, S. Kõljalg, J. Miciuleviciene and A. Balode


<p><strong>Abstract.</strong> We studied the prevalence of K. pneumoniae and E. coli resistance to extended spectrum cephalosporins and carbapenems, isolated from patients of eight hospitals in St-Petersburg from January to May, 2012. Prevalence of cephalosporin resistant isolates varied in different hospitals: E. coli – from 7,8 to 50%, K. pneumoniae – from 25,4 to 88,4%. Isolates produced extended spectrum beta-lactamases СТХ-М, mainly СТХ-М-1, also СТХ-М-2 and СТХ-М-9. Twenty two carbapenem-resistant K. pneumoniae strains (also resistant to other antimicrobials) were isolated in three hospitals. MALDI-TOF MS showed that carbapenem resistance was caused by carbapenemase. Carbapenemases of all isolates belonged to metallo-β-lactamases according to results of the ROSCO Diagnostica tests. The gene coding production of New Delhi metallo-β-lactamase (blaNDM-1) were detected in all strains. Our data confirmed that the main cephalosporin resistance mechanism of E. coli и K. pneumoniae in Baltic region (including Russia, St-Petersburg) is CTX-M-1 production. For the first time in Russia K. pneumoniae strains  producing metallo-β-lactamases NDM-1 were isolated in several hospitals of St-Petersburg.</p

Topics: K. pneumoniae, E. Coli, резистентность, СТХ-М, NDM-1, Infectious and parasitic diseases, RC109-216
Publisher: Sankt-Peterburg : NIIÈM imeni Pastera
Year: 2013
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