2026-07-21T14:19:57Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/65882024-09-27T22:25:48Zcom_20.500.12105_2052com_20.500.12105_2051col_20.500.12105_19609

00925njm 22002777a 4500 dc Marquez-Lopez, Alicia author Ruiz Del Castillo, Belen author Cano, María Eliecer author Rodríguez-Mirones, Cristina author Oteo-Iglesias, Jesus author Sáez, David author Martínez-Martínez, Luis author 2013-12 Most Escherichia coli resistant to quinolones are not haemolytic. The objective of this study was to determine the phylogroup, clonal relationship, mechanism of quinolone resistance and virulence factors in 70 haemolytic E. coli resistant to nalidixic acid. Sixty-six isolates contained the hlyA gene, belonged to phylogroup B2, and 61 of them presented low-level resistance to fluoroquinolones. Four isolates presented high-level resistance to fluoroquinolones, contained the clyA gene and were included in phylogroup D. One single isolate (phylogroup D, with low level resistance to fluoroquinolones) contained both cytotoxins. Springerplus. 2013;2(1):71. 10.1186/2193-1801-2-71 2193-1801 SpringerPlus 23543875 http://hdl.handle.net/20.500.12105/6588 Escherichia coli Haemolysis Quinolone resistance clyA hlyA Production of HlyA and ClyA haemolysins among quinolone-resistant Escherichia coli isolated from clinical samples