Product Index Food pathogen detection Monitoring for pathogens in our food supply is a critical tool for public health. We offer a variety of PCR tests for common bacterial strains that can impact food safety. Products EHEC (VT gene) screening EHEC (O antigen) typing PCR premix for O-157 (VT gene) screening PCR premix for O-157 (VT gene) typing O-157 (VT gene) typing Campylobacter detection and typing