A rapid latex agglutination test kit for the identification of the E. coli O157 serotype. So sensitive that it requires only one single colony. Uses proprietary antibodies that eliminate the possibility of cross-reactions with Escherichia hermanii and other sorbitol-negative Escherichia species. Contains both positive and negative controls. Includes reaction cards and mixing sticks. Rapid results in just 2 minutes. 2 year shelf life.