The Avicenna test system (St. Petersburg) for detecting antibodies to
hepatitis C is assessed. Two-hundred and ten sera with increased SGPT
activity and 73 samples seropositive in screening by the Aquapast test
system (St. Petersburg) were examined. Avicenna system with 3 synthet
ic peptides as the test objects is characterized by a higher sensitivi
ty and specificity and is recommended for practical use at blood servi
ce institutions.