Decreased susceptibility to azithromycin and erythromycin mediated by a novel mtr(R) promoter mutation in Neisseria gonorrhoeae

被引:52
作者
Zarantonelli, L
Borthagaray, G
Lee, EH
Veal, W
Shafer, WM
机构
[1] Natl Ctr Gonococcal Antimicrobial Susceptibil Sur, Dept Microbiol, Sch Chem, Montevideo 11800, Uruguay
[2] Emory Univ, Sch Med, Dept Immunol & Microbiol, Atlanta, GA 30332 USA
[3] VA Med Ctr Atlanta, Med Res Serv, Labs Microbial Pathogenesis, Decatur, GA 30333 USA
关键词
D O I
10.1093/jac/47.5.651
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
During a screen of Neisseria gonorrhoeae clinical isolates obtained in Uruguay for susceptibility to azithromycin, we noticed that approximately 10% of the strains examined displayed decreased susceptibility to azithromycin and erythromycin due to the mtr(CDE)-encoded afflux pump system, but remained susceptible to Triton X-100, We now report that the mtr(R) promoter region of one of these isolates contains a dinucleotide insertion (TT) that mediates this resistance phenotype.
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收藏
页码:651 / 654
页数:4
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