a reverse enzyme immunoassay ( r-eia ) is described , in which polystyrene muplates are sensitized with anti-immunoglobulin m ( igm ) ( mu chain ) antibodies and then sequentially allowed to react with patient 's serum , peroxidase-labeled toxoplasma gondii soluble antigen , and substrate .
C0020861
immunoglobulin m
C0003241
antibodies