Enzyme-linked immunosorbent assay for the serodiagnosis of toxoplasmosis.

The enzyme-linked immunosorbent assay (ELISA) for toxoplasmosis proved as sensitive as the dye test and indirect haemagglutination (IHA). The reproducibility of end-point titres was better than that of the extinction values obtained from a single serum dilution. In a comparison of 152 sera, ELISA was found to correlate better with IHA than with the dye test. The use of ELISA for routine serology and population screening is discussed.