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Revista argentina de microbiología
versión impresa ISSN 0325-7541versión On-line ISSN 1851-7617
Resumen
CEJAS, D. et al. Phenotypic and genotypic characterization of imipenem-resistant Pseudomonas aeruginosa isolated in Buenos Aires. Rev. argent. microbiol. [online]. 2008, vol.40, n.4, pp.238-245. ISSN 0325-7541.
From 129 P. aeruginosa isolated at a health care centre located in Buenos Aires (Hospital "Eva Perón"), 14% produced IMP-13. Although 18 isolates were metallo-b-lactamases (MBL) producers, only those isolates that displayed altered outer membrane protein profiles correlated with the resistant category according to CLSI or even Subcomisión de Antimicrobianos, SADEBAC, AAM. Phenotypic screening of metallo-b-lactamases proved to be appropriate for detecting MBL producing isolates. IMP-13 producing isolates corresponded to at least five different clonal types, which not only suggests the dissemination of the resistant strain but also of the resistant marker.
Palabras clave : Carbapenemases; Metallo-b-lactamases; Carbapenem resistance.