In order to evaluate the sensitivity of HCV test, Ortho Second and Thi
rd Generation HCV Elisa Tests were used in 315 sera collected from dia
lysis patients. The agreement between the two tests was 96.5%, RIBA Se
cond and Third generation and PCR were tested in the eleven discordant
sera and in specimens collected in 1992 from the same patients and in
20 Ortho-2 and Ortho-3 HCV negative patients. Ortho-3 test is capable
of detecting anti-HCV seroconversion earlier than Ortho-2 with increa
sed sensitivity and specificity, as is confirmed by RIBA and PCR tests
.