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  • Title: ESBL, plasmidic AmpC, and associated quinolone resistance determinants in coliforms isolated from hospital effluent: first report of qnrB2, qnrB9, qnrB19, and blaCMY-4 in Algeria.
    Author: Anssour L, Messai Y, Derkaoui M, Alouache S, Estepa V, Somalo S, Torres C, Bakour R.
    Journal: J Chemother; 2014 Apr; 26(2):74-9. PubMed ID: 24093472.
    Abstract:
    The characterization of extended-spectrum beta-lactamases , plasmidic AmpC (pAmpC), and associated plasmid-mediated quinolone resistance (PMQR) determinants in cefotaxime-resistant coliforms isolated from hospital effluent in Algiers showed blaCTX-M genes in 89%, blaTEM-1 in 79·8%, and pAmpC genes (blaCIT) in 2·7% isolates. Association of ISEcp1B with blaCTX-M was found in all CTX-M+ isolates, and 97·2% harboured class 1 integrons. Sequencing showed blaCTX-M-15, blaCTX-M-3, and blaCMY-4 genes. blaCTX-M-3 and blaCTX-M-15 were located in Inc L/M conjugative plasmids. The PMQR determinants identified were qnrB1, qnrB2, qnrB9, qnrB19, qnrS2, and aac(6')-Ib-cr. qnrB2, qnrB9, qnrB19, and blaCMY-4 are described for the first time in Algeria and qnrB19 for the first time in non-clinical environments. This study highlights the major potential role of hospital effluents as providers of resistance genes to natural environments.
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