Occurrence and clonal diversity of multidrug-resistant Klebsiella pneumoniae recovered from inanimate surfaces in Algerian hospital environment: First report of armA, qnrB and aac(6′)-Ib-cr genes

• Published in: Journal of global antimicrobial resistance. 2017-09, Vol.10, p.148-153
• Main Authors: Zenati, Karima, Sahli, Farida, Garcia, Vincent, Bakour, Sofiane, Belhadi, Djellali, Rolain, Jean Marc, Touati, Abdelaziz
• Format: Article
• Language: English
• Subjects: Acetyltransferases - genetics; Algeria - epidemiology; Anti-Bacterial Agents - pharmacology; armA; Bacterial Proteins - genetics; beta-Lactamases - genetics; Drug Resistance, Multiple, Bacterial - drug effects; Drug Resistance, Multiple, Bacterial - genetics; ESBLs; Hospital environment; Hospitals; Human health and pathology; Humans; Inanimate surfaces; Klebsiella Infections - epidemiology; Klebsiella Infections - microbiology; Klebsiella pneumoniae; Klebsiella pneumoniae - drug effects; Klebsiella pneumoniae - genetics; Life Sciences; Methyltransferases - genetics; Microbial Sensitivity Tests; Molecular Epidemiology; Molecular Typing; Multilocus Sequence Typing; Plasmids; PMQR
• ISSN: 2213-7165; 2213-7173
• DOI: 10.1016/j.jgar.2017.05.015

•High prevalence of MDR K. pneumoniae isolates from the inanimate surface in Algeria.•First report of armA, qnrB and aac(6′)-Ib-cr genes in the hospital environment in Algeria.•Dissemination of MDR clones in the hospital environment.•First study that investigated the clonal diversity in MDR environmental K. pneumoniae.•Exceptional adaptation to the environment can contribute to the difficulty in restricting the spread. The aim of this study is to characterize the molecular support of antibiotic resistance in MDR Klebsiella pneumoniae recovered from inanimate surfaces between March 2012 to February 2014 in three teaching hospitals (Setif, Bejaia and Constantine) in Algeria. Forty-four K. pneumoniae producing ESBL were detected and blaCTX-M-15 and blaCTX-M-3 were detected respectively in 41 and 3 isolates. These K. pneumoniae isolates producing ESBL were also resistant to gentamicin (87%), tobramicin (87%), ciprofloxacin (66%) and ofloxacin (62%). Aminoglycosides resistance genes detected were 16S rRNA methylase (armA), aminoglycoside acetyl-transferase (aac(6′)-Ib), aminoglycoside nucleotidyl-transferase (aadA2) and aminoglycoside, phosphoryl-transferase (ant3″Ih-aac(6′)-IId). Plasmid-mediated quinolone resistance (PMQR) genes detected were aac(6′)-Ib-cr (34 isolates) and qnrB genes in (34 isolates). Multilocus sequence typing (MLST) resulted in 12 different sequence types (STs) regrouped into 5 clonal complexes (CC147, CC17, CC37, CC2 and CC23), one clonal group (CG485) and 4 singletons (ST1426, ST405, ST1308, ST873). Here, we report the detection of the ESBLs encoding gene linked with plasmid-mediated quinolone resistance (PMQR) and aminoglycosides resistance recovered from inanimate surfaces in hospital environment.