Specificity control in solid-phase enzyme immunoassay for HBsAg by one-step in situ blocking with human anti-HBs.

Abstract

anti-ad titre: anti-ay titre was 1: 2 5. For the other anti-HBs serum this ratio was 2 1:1. We consider this indicates that the latter antiserum contains anti- bodies to the d-determinant. For the sake of clarity, we shall designate this antiserum as 'anti-ad' in the following text. Both antisera were compared at the same strength of anti-HBs, that is, diluted on the basis of the 'average' titre: V/(anti-adtitre) x (anti-ay titre).