Quinolone-resistant uropathogenic Escherichia coli strains from phylogenetic group B2 have fewer virulence factors than their susceptible counterparts.
نویسندگان
چکیده
The prevalence of 31 virulence factors was analyzed among nalidixic acid-susceptible and -resistant Escherichia coli strains from phylogenetic group B2. Hemolysin, cytotoxic necrotizing factor 1, and S and F1C fimbriae genes were less prevalent among nalidixic acid-resistant E. coli strains. Quinolone resistance may be associated with a decrease in the presence of some virulence factors.
منابع مشابه
Virulence genes, quinolone and fluoroquinolone resistance, and phylogenetic background of uropathogenic Escherichia coli strains isolated in Japan.
A total of 312 uropathogenic Escherichia coli strains were isolated from clinical specimens in 7 hospitals in Aichi Prefecture, Japan. Among them, 113 strains were resistant to quinolone, and 49 strains were resistant to fluoroquinolone. Phylogenetic group B2 was most prevalent in both susceptible strains (148 of 199 strains, 74.4%) and resistant strains (quinolone-resistant strains, 73 of 113 ...
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ورودعنوان ژورنال:
- Journal of clinical microbiology
دوره 43 6 شماره
صفحات -
تاریخ انتشار 2005