In this study, we detected stx2d genes (stx2d1A and stx2dB) and combinations of stx1a, stx1b and eae (8 isolates) and stx2a, stx2dB and eae (2 isolates), which have the potential to cause HC and HUS in humans [1,39,40]. This evidence concerns the gene STX1B and hemolytic-uremic syndrome.