[A critical study of immuno-enzymatic reactions coupled with the precipitation tests on cellulose acetate membranes].

Precipitating tests carried out on cellulose acetate membrane can be increased by treating the immune complexes with enzyme linked anti-immunoglobulin antibodies. From our trials in parastic diseases (Amoebiasis, schistosomiasis, fasciolasis, filariasis, hydatidosis, trichinosis) and mycosis (Aspergillosis, Candidiasis), it seems that the immuno-enzymatic labelling of the "active" precipitating reactions should only be taken in consideration. We must insit on the importance of ELIEDA (enzyme-linked-immuno-electrodiffusion-assay) and ELIDEPA (enzyme-linked-immuno-double-electro-phoresis-assay). Both of these analytical assays are particularly sensitive. The sequence of appearance of the multiple precipitating systems of the complex parasitic mosaic can easily be watched. The different classes of immunoglobulins and their kinetics are determined by the use of monospecific antibodies linked to different enzymes which give a polychromic specific staining.