The First Largeâ Scale Nucleic Acid Amplifiion Testing ...
blood samples were screened for hepatitis B surface antigen (HBsAg) by reversed passive hemagglutination (RPHA), for antiHBV core antibody (antiHBc)by hemagglutination inhibition (HI), antiHBsAgantibody (antiHBs) by passive hemagglutination (PHA) using reagents prepared by JRC and agglutination tests for