| purified antigen radioimmunoassay in serological diagnosis of schistosomiasis mansoni. | a radioimmunoassay has been developed for detecting human schistosomiasis with a highly purified schistosoma mansoni egg antigen labelled with iodine-125. the antigen, major serologic antigen 1 (m.s.a.1), has striking immunochemical and species specificity and appears to be the principal antigen responsible for the granulomatous response to s. mansoni eggs. this 125i-antigen was tested with 5 microliter of patient serum as a potential serodiagnostic test for schistosomiasis. 92 control sera from ... | 1977 | 71599 |