Recruitments «PCR-STEC-1-FAKTOR» and «PCR-STEC-2-FAKTOR»designed to detect the bacteria Escherichia coli that produce Shiga-toxin (Shiga toxin-producing Escherichia coli, STEC), including O157, O111, O26, O103 and O145 in accordance with ISO/TS 13136-2016 GOST.