Phylogeny and antimicrobial resistance of extended-spectrum beta-lactamaseproducing Escherichia coli from hospitalized oncology patients in Perú.

Introduction: Healthcare-associated infections are a public health problem due to the increased morbimortality of patients, especially those with risk factors such as immunosuppression due to oncological diseases. It is essential to determine the genetic diversity of the main microorganisms causing healthcare infections by combining traditional epidemiological surveillance and molecular epidemiology for better outbreak follow-up and early detection. Objective: To determine the phylogenetic group and antibiotic resistance of Escherichia coli isolated from hospitalized oncologic patients.

Extended-spectrum beta-lactamase-producing enterobacterales carrying the mcr-1 gene in Lima, Peru.

We analyzed the presence of the mcr-1 gene in 165 extended-spectrum beta-lactamase-producing enterobacterales (ESBL-PE) obtained during 2017, from blood (40), urine (57), lower respiratory secretions (12) and rectal swabs (56) of patients hospitalized in the Instituto Nacional de Enfermedades Neoplásicas (Peru). Antimicrobial identification and susceptibility were determined by the Phoenix M50 automated system; colistin resistance by Colistin Agar-Spot (CAS); mrc-1 detection by colistin pre-diffusion and inhibition with EDTA test (CPD-E) and by polymerase chain reaction (PCR). We found that from the 165 ESBL-PE, 25 were positive for mcr-1 by the CPD-E method and confirmed by PCR.

[Serological diagnosis of Fasciola hepatica infection: a systematic review].

Introduction: Fascioliasis is a disease caused by the parasite Fasciola hepatica, according to its clinical picture, it can be classified into two phases: acute and chronic, currently the diagnosis is made during the chronic phase, however, early detection would allow to provide an effective treatment and timely. Objetive: This study is carried out with the objective of evaluating the diagnostic validity of serological tests for the timely diagnosis of hepatic fascioliasis.

Materials And Methods: a systematic search of the literature was carried out in Embase, MedLine, Cochrane Library and LILACS.

Presence of fimH and afa genes in urinary isolates of extended-spectrum beta-lactamases producing Escherichia coli in Lima, Peru.

Descriptive study conducted in order to determine the presence of the fimH and afa genes in urinary isolates of extended-spectrum beta-lactamases (ESBL) producing Escherichia coli. Isolates from project TO-06/09 of the Instituto Nacional de Salud del Niño in Lima, Peru were used. A total of 75 urinary isolates of Escherichia coli were included.

[Markers of plasmid resistance to qnr quinolones in clinical isolates of CTX-M beta-lactamases-producing enterobacteria in Lima, Peru].

Aimed at reporting markers of plasmid resistance to qnr quinolones in clinical isolates of CTX-M beta-lactamase-producing enterobacteria, a descriptive study was conducted with isolates from the strain repository of TO-06/09 project of the National Children´s Health Institute. 138 isolates were recovered. Antimicrobial susceptibility was determined by the diffusion disk method, and gene identification by polymerase chain reaction.

[Extended-spectrum beta-lactamase (esbl)-producing enterobacteriaceae in fecal samples at the National Institute of Child Health, Peru].

Objectives: To describe the frequency of extended-spectrum beta-lactamase (ESBL)-producing enterobacteriaceae in fecal samples at the National Institute of Child Health, Lima, Peru.

Materials And Methods: Stool samples received between July 2012 and March 2013 with colonies suspected to be ESBL-producing enterobacteriaceae that developed in Karmali agar were analyzed. Conventional methods were performed for biochemical identification and the confirmation of the ESBL phenotype.