The carrier state of shiga-like toxin II (SLT II) and hemolysin-producing enteroaggregative Escherichia coli strain.

Shiga-like toxin-producing (SLTEC) Escherichia coli strains are one of the most important food borne emerging pathogens. One hundred and fifty-seven E. coli strains isolated from 39 children with diarrhea of unknown origin and one hundred and five E. coli strains from 20 healthy children were examined for Shiga-like toxin production in Vero cell line assay. The synthesis of Shiga-like toxin was observed on Vero cell line and confirmed by PCR for one of 262 E. coli strains tested. The shiga-like toxin II-positive E. coli strain was isolated from 2-years old healthy child with no symptoms of gastrointestinal tract infection.