Fig.2

S/Co value distribution in four anti-HCV assays. Distribution of the Signal-to-Cutoff (S/Co) values in Ortho-ELISA (a), Murex-ELISA (b), Elecsys-ECLIA (c) and Architect-CMIA (d) assays were shown. The default cutoff value is 1.0 and S/Co ≥ 1 is regarded as positive. S/Co values were higher in chemiluminescent assays (Elecsys-ECLIA and Architect-CMIA) than in enzyme immunoassays (Ortho-ELISA and Murex-ELISA) due to colorimeter high-end reading limitations