circulating antigens , antibodies to somatic and sheath components of microfilariae ( mf ) and immune complexes were determined in parallel in different categories of wuchereia bancrofti infection using , respectively , reverse indirect haemagglutination ( riha ) , indirect haemagglutination ( iha ) , indirect immunofluorescent ( ifa ) and polyethylene glycol ( peg ) precipitation assays .
C0003241
antibodies
C0003313
immune complexes