RT Journal Article
T1 Detection of Escherichia coli ST131 complex (ST705) and Klebsiella pneumoniae ST15 among fecal carriage of extended-spectrum betalactamase- and carbapenemase-producing Enterobacteriaceae
A1 Ríos Dueñas, Esther
A1 López Díaz, María Carmen
A1 Rodríguez-Avial Infante, Iciar
A1 Culebras López, Esther
A1 Picazo De La Garza, Juan José
AB Purpose. The objective of the present study was to evaluate the prevalence of intestinal colonization with extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae (ESBL-E) and carbapenemase-producing Enterobacteriaceae (CPE) in non-selected hospitalized and non-hospitalized patients from the same geographic area of Madrid.Methodology. A total of 501 fecal samples were screened. Diluted samples in saline were cultured in MacConkey agar plates with ceftazidime, cefotaxime, imipenem and meropenem disks. Colonies growing within the inhibition zone of either disk were selected. Characterization of ESBLs and CPEs were performed by PCR and sequencing. The Wider system was used for the bacterial identification. In addition, clonal analysis was carried out for species predominant among the fecal carriage.Key Findings. Among the 501 patients enrolled, 43 (8.6 %) carried ESBL-E and 8 (1.6 %) patients exhibited CPE. The main intestinal colonizer among ESBL-E was CTX-M-producing Escherichia coli isolates in both settings (community and hospital). ST131 clonal complex was the most common among faecal ESBL-producing E. coli. All gut carriers of CPE were hospitalized patients, Klebsiella pneumoniae being the most prevalent species. Two OXA-48-producing K. pneumoniae isolates belonging to ST15 were detected.Conclusion. Present study reveals that faecal carriage of ESBL is common among inpatients and outpatients, whereas carbapenemase producers are only present in the hospital setting. Therefore, active surveillance will be useful for reducing transmission of antimicrobial-resistant bacteria and preventing infection.
PB Microbiology Society
SN 0022-2615
YR 2017
FD 2017-02-01
LK https://hdl.handle.net/20.500.14352/112762
UL https://hdl.handle.net/20.500.14352/112762
LA eng
NO Ríos, Esther, et al. «Detection of Escherichia Coli ST131 Clonal Complex (ST705) and Klebsiella Pneumoniae ST15 among Faecal Carriage of Extended-Spectrum β-Lactamase- and Carbapenemase-Producing Enterobacteriaceae». Journal of Medical Microbiology, vol. 66, n.o 2, febrero de 2017, pp. 169-74. DOI.org (Crossref), https://doi.org/10.1099/jmm.0.000399.
NO Health Research and Development Strategy (AES) 2013
NO Instituto de Salud Carlos III
NO Unión Europea
DS Docta Complutense
RD 12 abr 2025