I am wondering what folks have tried for alternative methods of detecting hepatitis B core antigen/capsid. Dako used to make an antibody that was very effective in this and widely used in the field, but since their acquisition by Agilent it is no longer made and there are no validated substitutes. We have already spoken to Agilent and checked Biocompare, and while several similar-sounding ones seem to exist, they all lack references or any figures showing that they work for western blots. All publications using immunoassay detection of this protein still use the Dako antibody. Has anyone found another antibody that works, even if you're not publishing with it yet?