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Volume 59, Issue 7

Nosocomial infection by VIM-2 metallo--lactamase-producing Free

Abstract

Nosocomial infections caused by multidrug-resistant and carbapenem-resistant isolates have been reported occasionally in severely ill or immunocompromised patients. Here we report the microbiological characteristics of what are believed to be the two first carbapenem-resistant VIM metallo--lactamase (MBL)-producing strains in Spain, which were isolated from patients at the University Hospital Complex of Santiago de Compostela. Both patients were immunocompromised with severe underlying diseases and had been hospitalized for more than 15 days. One of them had previously been treated with a broad-spectrum therapy. Antimicrobial susceptibility testing showed that both strains were resistant to piperacillin/tazobactam, ceftazidime, cefepime, imipenem, meropenem, gentamicin, tobramycin, aztreonam, trimethoprim/sulfamethoxazole and ciprofloxacin, but sensitive to amikacin and colistin. For both isolates PCR and sequencing was positive for the gene. Fingerprinting analysis revealed these were two different strains. One patient recovered clinically and one died; no direct link could be established between the isolation of and death. Our data expose the emergence of multidrug-resistant VIM-2 MBL, probably arising by independent horizontal transfer of resistance genes. So, although is not frequently isolated, it may survive easily in the hospital setting and occasionally cause difficult-to-treat nosocomial infections in severely ill patients.

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Keyword(s): MBL, metallo-β-lactamase
SGM
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2010-07-01
2024-04-19
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Nosocomial infection by VIM-2 metallo-β-lactamase-producing Pseudomonas putida
J. Med. Microbiol. 59, 853 (2010); https://doi.org/10.1099/jmm.0.018036-0
/content/journal/jmm/10.1099/jmm.0.018036-0
/content/journal/jmm/10.1099/jmm.0.018036-0
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