Escherichia coli is a common inhabitant of the gastrointestinal tracts of humans and animals. Commensal E. coli, designated as nonpathogenic, are considered to be the majority. This microorganism can be divided into two large groups: pathogenic and commensal E. coli. The pathogenic group is characterized by two more pathotypes: diarrheagenic E. coli (DEC) (with eight subpathotypes) and extraint...

UNLABELLED Enteropathogenic Escherichia coli may cause diarrhoea in infancy, but it is not routinely detected and regarded as a major causative agent. The aim of the present study was to estimate the incidence of enteropathogenic E. coli infection and to investigate its epidemiology and pathogenesis from faecal specimens in infants hospitalized for acute gastroenteritis. Between March 2008 and ...

BACKGROUND AND OBJECTIVES Diarrheagenic Escherichia coli (DEC) strains are a major cause of intestinal syndromes in the developing countries. The aim of this study was to determine the prevalence of enterotoxigenic E. coli (ETEC) and enteroinvasive E. coli (EIEC) in relation to phylogenetic background from patients with diarrhea. MATERIALS AND METHODS A total of 110 E. coli isolates were obta...

The phylogenetics of the various pathotypes of diarrheagenic Escherichia coli are not completely understood. In this study, we identified several plasmid and chromosomal genes in the pathogenic enteroaggregative E. coli (EAEC) prototype strain 042 and determined the prevalence of these loci among EAEC and diffusely adherent E. coli strains. The distribution of these genes is analyzed within an ...

This study was conducted to characterize virulence genes of Escherichia coli isolates from water, sediment, fish, and crab in Aby Lagoon. Serogrouping was performed by EPEC antisera in 113 E. coli strains. The presence of diarrhea-associated genes (eae, stx, AggR, elt, and est) was assessed by multiplex PCR using specific primers. Based on the multiplex PCR, sixty-two isolates (42 from water, 1...

AIM The purpose of this study was to investigate the prevalence of enteropathogenic Escherichia coli (EPEC) and shiga toxin producing E. coli (STEC) strains in healthy broilers in Iran. BACKGROUND STEC and EPEC strains as diarrheagenic E. coli are among the most prevalent causative agents in acute diarrhea. Domestic animals, mainly cattle and sheep, have been implicated as the principal reser...

Figure 1. Kinetics of (1r3) b-d-glucan levels in a patient with Pneumocystis jiroveci pneumonia and human immunodeficiency virus infection (white bars) and in a renal transplant recipient with P. jiroveci pneumonia (gray bars). Both patients responded to the treatment and survived the infection. factors for Shiga toxin–producing Escherichia coli infection in Australia. Clin Infect Dis 2009; 49:...

A Shiga-toxin-producing Escherichia coli (STEC) strain belonging to serotype O104:H4, phylogenetic group B1 and sequence type ST678, with virulence features common to the enteroaggregative E. coli (EAEC) pathotype, was reported as the cause of the recent 2011 outbreak in Germany. The outbreak strain was determined to carry several virulence factors of extraintestinal pathogenic E. coli (ExPEC) ...

Escherichia coli is considered as the main cause of epidemic outbreaks and endemic cases of child diarrhea. In the present study, the capacity of a large collection of Escherichia coli (E. coli) strains and matched controls was investigated to determine their adherence pattern on Hep-2 cell lines. A total of 66 pure E. coli strains, which were previously isolated from children aged less than 12...

Background: Diarrheagenic Escherichia coli (DEC) strains are predominant cause of gastrointestinal tract illnesses. The main objective of the study was to determine antibiotic resistance in various types of DEC isolated from chicken broilers farmed in Pakistan. Methods: A total of 200 feces and 200 meat samples from broiler chickens were collected from the slaughtering shops in Southern Punjab...