Virulence and Antimicrobial Resistance in spp. from a Peruvian Pediatric Cohort.

The presence of virulence factors (VFs) and mechanisms of quinolones and macrolide resistance was analyzed in spp. from a pediatric cohort study in Lima. In 149 isolates (39 and 24 from diarrheic cases; 57 and 29 from controls), the presence of the and genes and marker was established.

Virulence factors and mechanisms of antimicrobial resistance in Shigella strains from periurban areas of Lima (Peru).

The study was aimed to describe the serotype, mechanisms of antimicrobial resistance, and virulence determinants in Shigella spp. isolated from Peruvian children. Eighty three Shigella spp.

Which mechanisms of azithromycin resistance are selected when efflux pumps are inhibited?

The aim of this study was to develop in vitro azithromycin (AZM)-resistant mutants of Escherichia coli and Shigella spp. in the presence of Phe-Arg β-naphthylamide (PAβN) and to observe which AZM resistance mechanisms other than efflux pumps were inhibited by PAβN emerge. The frequency of mutation ranged between <6.

In vitro development and analysis of Escherichia coli and Shigella boydii azithromycin-resistant mutants.

The aim of this study was to develop and analyze in vitro azithromycin (AZM)-resistant mutants of Escherichia coli and Shigella boydii. Three clinical isolates of E. coli and one S.

Randomized double-blind controlled trial of bovine lactoferrin for prevention of diarrhea in children.

Objective: To determine the effect of bovine lactoferrin (bLF) on prevention of diarrhea in children.

Study Design: We conducted a community-based randomized double-blind placebo controlled trial comparing supplementation with bLF vs placebo. Previously weaned children were enrolled at 12-18 months and followed for 6 months with daily home visits for data collection and supplement administration.

[Levels of quinolones resistance and other antimicrobial in non-pathogenic Escherichia coli strains in children from the periurban area of Lima, Peru].

The main aim of this study was to establish the resistance levels to antimicrobial agents, in 222 non-pathogenic E. coli strains of fecal origin in Peru. The proportion of resistance found to the evaluated antimicrobials was ampicillin (62.

[Adhesion patterns in diffusely adherent Escherichia coli (DAEC) strains isolated from children with and without diarrhea].

Introduction: Diffusely adherent E. coli (DAEC) is the sixth recognized group of diarrheagenic E. coli.

[Frequency and pathotypes of diarrheagenic Escherichia coli in Peruvian children with and without diarrhea].

Unlabelled: INTRODUCTION; Diarrheagenic E. coli (DEC) are a major cause of diarrhea in children in developing countries. However, they are not part of routine diagnosis in clinical laboratories.

[Comparison of enteropathogenic Escherichia coli (EPEC) diagnosis by serology and by polymerase chain reaction (PCR)].

Introduction: The identification of EPEC in clinical laboratories is based on the determination of the serotypes by agglutination with O and H antiserum. Currently the proper diagnosis of EPEC should be done by the identification of the intimin gen (eaeA) by PCR.

Objectives: To compare the diagnosis of EPEC by serotyping and by PCR.