Serotypes, virulence profiles and stx subtypes of Shigatoxigenic Escherichia coli isolated from chicken derived products.

Shigatoxigenic Escherichia coli (STEC) is a foodborne pathogen that causes hemolytic uremic syndrome (HUS) and the consumption of chicken products has been related to some HUS cases. We performed a non-selective isolation and characterization of STEC strains from retail chicken products. STEC isolates were characterized according to the presence of stx, stx, eae, saa and ehxA; stx subtypes and serotypes.

[Characterization of enteropathogenic Escherichia coli (EPEC) strains isolated during the chicken slaughtering process].

In Argentina, EPEC is one of the most prevalent agents isolated from children with diarrhea. Because contamination with this pathotype could occur during slaughter, the aim of this study was to isolate and characterize EPEC strains obtained from live animals (cloacae), eviscerated carcasses, washed carcasses and water from chillers. Twenty nine isolates of atypical EPEC were characterized.