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Título : Characterization and antimicrobial susceptibility of one antibiotic-sensitive and one multidrug-resistant Corynebacterium kroppenstedtii strain isolated from patients with granulomatous mastitis
Autor : Fernández Natal, Isabel
Rodríguez Lázaro, David
Marrodán Ciordia, T.
Sáez Nieto, J. A.
Valdezate Ramos, S.
Rodríguez Pollán, R. H.
Tauch, A.
Soriano, F.
Publicado en: New Microbes and New Infections. 2016, V. 14, p. 93–97
Editorial : Elsevier
Fecha de publicación : nov-2016
Resumen : Human infections associated with Corynebacterium kroppenstedtii are rarely reported, and this organism is usually described as antibiotic sensitive. Almost all published cases of C. kroppenstedtii infections have been associated with breast pathology in women and have been described in New Zealand, France, Canada, India and Japan. Here we describe the microbiologic characteristics of two strains isolated from two women diagnosed of granulomatous mastitis in Spain. One C. kroppenstedtii isolate was antibiotic sensitive while the other was multidrug resistant. Biochemical identification was possible using a wide battery of methods including API Coryne V2.0, API Strep, API NH, API NE, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and 16S rRNA gene amplification and sequencing. Antimicrobial susceptibility to 28 antibiotics as determined by Etest showed one isolate being sensitive to benzylpenicillin, ciprofloxacin, moxifloxacin, gentamicin, vancomycin, clindamycin, tetracycline, linezolid and rifampin. The second isolate showed resistance to ciprofloxacin, moxifloxacin, clindamycin, tetracycline and rifampin. The multidrug-resistant isolate contained the erm(X), tet(W), cmx, aphA1-IAB, strAB and sul1 resistance genes known from the R plasmid pJA144188 of Corynebacterium resistens. These genes were absent in the genome of the antibiotic-sensitive isolate. This report confirms the tropism of this microorganism for women's breasts and presents the first description of a multidrug-resistant C. kroppenstedtii strain.
Palabras clave: Antimicrobial susceptibility
Corynebacterium kroppenstedtii
granulomatous mastitis
MALDI-TOF MS
multidrug-resistant isolate
URI : http://hdl.handle.net/10259/4398
Versión del editor: http://dx.doi.org/10.1016/j.nmni.2016.09.006
Aparece en las colecciones: Artículos TECNOFOOD

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