[Study of hepatitis B surface antigen by 2 different serological methods]

This investigation was carried out in order to determine the sensitivity of Discontinous-Counter-Immunoelectrophoresis (DCIE) and passive erythrocyte hemagglutination (RPHA) teste in screening the presence of HBsAg in normal population and blood donors. 1321 sera from apparently normal individuals and 156 sera from blood donors were tested. Among, normal individuals, the carriers were 22 (1.66%) with DCIE test and 122 (9.22%) with RPHA test; and among blood donors, 6 (3.84%) with DCIE test and 36 (23.0%) with RPHA test.