Figure 2From: Detection of infections with hepatitis B virus, hepatitis C virus, and human immunodeficiency virus by analyses of dried blood spots - performance characteristics of the ARCHITECT system and two commercial assays for nucleic acid amplificationHBsAg and anti-HBs testing in DBS eluates. Separation of positive from negative materials after changing the cut-off values to 0.15Â IU/ml (HBsAg) (A) and 1.5Â IU/l (anti-HBs) (B), respectively.Back to article page