Literature DB >> 20350943

Emergence of ciprofloxacin-nonsusceptible Streptococcus pyogenes isolates from healthy children and pediatric patients in Portugal.

Renato Pires1, Carmen Ardanuy, Dora Rolo, Ana Morais, António Brito-Avô, José Gonçalo-Marques, Josefina Liñares, Ilda Santos-Sanches.   

Abstract

We describe 66 ciprofloxacin-nonsusceptible Streptococcus pyogenes isolates recovered from colonized and infected children. The ParC S79A substitution was frequent and associated with the emm6/sequence type 382 (emm6/ST382) lineage. The ParC D83G substitution was detected in two isolates (emm5/ST99 and emm28/ST52 lineages). One isolate (emm89/ST101) had no quinolone resistance-determining region codon substitutions or other resistance mechanisms. Five of 66 isolates were levofloxacin resistant. Although fluoroquinolones are not used in children, they may be putative disseminators of fluoroquinolone-nonsusceptible strains in the community.

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Year:  2010        PMID： 20350943      PMCID： PMC2876401          DOI： 10.1128/AAC.01536-09

Source DB:  PubMed          Journal:  Antimicrob Agents Chemother        ISSN： 0066-4804            Impact factor:   5.191


  26 in total

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2.  Characterization of fluoroquinolone-resistant beta-hemolytic Streptococcus spp. isolated in North America and Europe including the first report of fluoroquinolone-resistant Streptococcus dysgalactiae subspecies equisimilis: report from the SENTRY Antimicrobial Surveillance Program (1997-2004).

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Journal:  Diagn Microbiol Infect Dis       Date:  2006-03-10       Impact factor: 2.803

3.  Emergence of high-level fluoroquinolone resistance in emm6 Streptococcus pyogenes and in vitro resistance selection with ciprofloxacin, levofloxacin and moxifloxacin.

Authors:  Surbhi Malhotra-Kumar; Liesbet Van Heirstraeten; Christine Lammens; Sabine Chapelle; Herman Goossens
Journal:  J Antimicrob Chemother       Date:  2009-03-11       Impact factor: 5.790

4.  Interspecies recombination occurs frequently in quinolone resistance-determining regions of clinical isolates of Streptococcus pyogenes.

Authors:  Christoph B Duesberg; Surbhi Malhotra-Kumar; Herman Goossens; Lesley McGee; Keith P Klugman; Tobias Welte; Mathias W R Pletz
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5.  High rates of transmission of and colonization by Streptococcus pneumoniae and Haemophilus influenzae within a day care center revealed in a longitudinal study.

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Authors:  Pierre Robert Smeesters; Anne Vergison; Dioclécio Campos Junior; Laurence Van Melderen
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Authors:  Renato Pires; Dora Rolo; Rosario Mato; João Feio de Almeida; Christina Johansson; Birgitta Henriques-Normark; Ana Morais; António Brito-Avô; José Gonçalo-Marques; Ilda Santos-Sanches
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9.  An intrinsic pattern of reduced susceptibility to fluoroquinolones in pediatric isolates of Streptococcus pyogenes.

Authors:  S Steve Yan; Paul C Schreckenberger; Xiaotian Zheng; Nancy A Nelson; Susan M Harrington; Joyce Tjhio; Daniel P Fedorko
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10.  Changes in fluoroquinolone-resistant Streptococcus pneumoniae after 7-valent conjugate vaccination, Spain.

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Review 3.  Population biology of Gram-positive pathogens: high-risk clones for dissemination of antibiotic resistance.

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4.  Characterization of levofloxacin non-susceptible clinical Streptococcus pyogenes isolated in the central part of Italy.

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Review 5.  Resistance surveillance studies: a multifaceted problem--the fluoroquinolone example.

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Review 6.  Streptococcus pyogenes and re-emergence of scarlet fever as a public health problem.

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7.  Comparative analysis of quinolone resistance in clinical isolates of Klebsiella pneumoniae and Escherichia coli from Chinese children and adults.

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8.  Does the adoption of EUCAST susceptibility breakpoints affect the selection of antimicrobials to treat acute community-acquired respiratory tract infections?

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9.  Global fluoroquinolone resistance epidemiology and implictions for clinical use.

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10.  Clinical features of bacterial vaginosis in a murine model of vaginal infection with Gardnerella vaginalis.

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