Hepatitis B Virus Antigen Detection by Reverse Passive Hemagglutination

Abstract
A reverse passive hemagglutination (RPHA) procedure was developed for the detection of hepatitis B virus associated antigen (HB Ag) in human serum. The comparative sensitivity of six different methods was double agar diffusion<counter Immunoelectrophoresis<complement fixation <passive hemagglutination inhibition<RPHA.