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  • Title: Hepatitis C virus infection in Spanish volunteer blood donors: HCV RNA analysis and liver disease.
    Author: Muñoz-Gómez R, García-Monzón C, García-Buey L, Lo Iacono O, Borque MJ, Garía-Sánchez A, Pajares JM, Moreno-Otero R.
    Journal: Eur J Gastroenterol Hepatol; 1996 Mar; 8(3):273-7. PubMed ID: 8724030.
    Abstract:
    OBJECTIVE: To evaluate in a large group of volunteer blood donors the prevalence of antibodies to hepatitis C virus (anti-HCV) and the relation of transaminase (ALT) levels and viraemia to liver damage. DESIGN: A prospective study. SETTING: Transfusion Centre of the Autonomous Community of Madrid and the Liver Unit of the Princesa University Hospital. PATIENTS: From a population of 55,587 volunteer blood donors, 160 seropositive cases were further evaluated for virological and histological assessment. METHODS: Anti-HCV was tested by ELISA-2 and RIBA-2 assays. HCV RNA was analysed by nested PCR. Liver biopsies were obtained in 35 volunteer blood donors with abnormal ALT levels. RESULTS: The prevalence of anti-HCV detected by ELISA-2 was 0.93%. Serum ALT was abnormal in 61 of the 160 volunteers (38.1%). Of these, RIBA-2 was positive in 96.7% and HCV RNA was detectable in 96.1%. Serum ALT was normal in the remaining 99, 70.7% being RIBA-2 negative and 98.3% HCV RNA negative. The majority of biopsies (85.6%) showed chronic hepatitis. CONCLUSION: This study demonstrates that in blood donors screening for anti-HCV, a positive ELISA-2 test, when associated with abnormal ALT levels, is effective in recognizing subjects with active infection detected by HCV RNA and liver disease. Concerning ELISA-2 positive volunteer blood donors with normal ALT, long-term studies are warranted to elucidate whether they are really infected by HCV.
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