Abstract

A method is described by which complement fixation is detected with an enzyme linked immunosorbant assay (ELISA) technique. The method obviates the need for sensitised sheep red blood cells as an indicator of complement fixation and the titration of complement is not critical. The dose response curve has the advantage of being steep and the test result is read photometrically. As test serum and complement do not react together serum anticomplementary effects are eliminated. The ELISA complement fixation test (COMPELISA) was more sensitive than the conventional CFT for detecting brucella antibodies.