Characterization of CTX-M-15-producing Klebsiella pneumoniae and Escherichia coli strains isolated from hospital environments in Algeria.
For detecting extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae in the hospital environment, sedimentation plates were placed in the rooms of two hospitals. Three environmental isolates, two Klebsiella pneumoniae, and one Escherichia coli resistant to extended-spectrum cephalosporins with a phenotype indicating CTX-M enzymes production (the minimum inhibitory concentration [MIC] of cefotaxime was higher than the MIC of ceftazidime) were recovered. By PCR and sequencing, the three isolates were found to produce CTX-M-15. The bla(CTX-M-15) genes in the three isolates were transferred by conjugation. One K. pneumoniae environmental isolate showed an identical and unique RAPD profile with two other K. pneumoniae clinical isolates recovered from urinary tract infection from patients hospitalized in two different wards of another hospital.
Touati
Abdelaziz
A
Laboratoire de Microbiologie Appliquée, FSNV, Université A/MIRA de Béjaia, 06000, Algérie. ziz1999@yahoo.fr
Benallaoua
Said
S
Djoudi
Ferhat
F
Madoux
Janick
J
Brasme
Lucien
L
De Champs
Christophe
C
D000462:Algeria; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D003428:Cross Infection / Q000382:microbiology; D052978:Disk Diffusion Antimicrobial Tests; D024901:Drug Resistance, Multiple, Bacterial; D004926:Escherichia coli / Q000187:drug effects* / Q000201:enzymology / Q000302:isolation & purification; D006761:Hospitals; D006801:Humans; D007711:Klebsiella pneumoniae / Q000187:drug effects* / Q000201:enzymology / Q000302:isolation & purification; D008826:Microbial Sensitivity Tests; D010641:Phenotype; D016133:Polymerase Chain Reaction; D014552:Urinary Tract Infections / Q000382:microbiology; D001618:beta-Lactamases / Q000235:genetics*
D000900:Anti-Bacterial Agents; C473109:beta-lactamase CTX-M-15; D001618:beta-Lactamases