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.
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.
Authors: Teresita D J Bello Gonzalez; Arie Kant; Quillan Dijkstra; Francesca Marcato; Kees van Reenen; Kees T Veldman; Michael S M Brouwer Journal: Front Microbiol Date: 2022-06-23 Impact factor: 6.064
Authors: Lindsay E Evans; Aishwarya Krishna; Yajing Ma; Thomas E Webb; Dominic C Marshall; Catherine L Tooke; James Spencer; Thomas B Clarke; Alan Armstrong; Andrew M Edwards Journal: J Med Chem Date: 2019-05-01 Impact factor: 7.446
Authors: Clara Atterby; Kristina Osbjer; Viktoria Tepper; Elisabeth Rajala; Jorge Hernandez; Sokerya Seng; Davun Holl; Jonas Bonnedahl; Stefan Börjesson; Ulf Magnusson; Josef D Järhult Journal: Zoonoses Public Health Date: 2019-07-02 Impact factor: 2.702
Authors: Nathália L Andrade; Ana Carolina da Cruz Campos; Andrea Maria Cabral; Paula Hesselberg Damasco; Jerome Lo-Ten-Foe; Ana Cláudia P Rosa; Paulo V Damasco Journal: Braz J Microbiol Date: 2021-09-22 Impact factor: 2.476