The RapidChek^® CONFIRM™ non-O157 STEC IMS confirmation kit uses specific, high-affinity antibodies, each attached to separate magnetic particles. Should any of the non-O157 STECs be present, it will bind to the magnetic particles via the antibody. When the sample is plated to selective agar for confirmation, E. coli O26, O45, O103, O111, O121, and O145 are the predominant colonies that form, increasing the likelihood of picking that organism from a plate.