Using ALT values above the higher cut-off level (>40 U/L) as a gold standard test to confirm hepatic lesion in HCV infection and a high HA level (>34.2 ng/mL) as a comparative test to detect HCV infection and probable liver fibrosis in blood donors (Table 2), we observed that the HA screening test developed in this study with a cut-off of ≥34.2 ng/mL correctly identified 24 of the 25 blood donors infected with HCV (sensitivity = 96%). The gene discussed is GPT; the disease is Hepatic fibrosis.