Document 0433 DOCN M9440433 TI Prevalence of antibody to hepatitis C virus (HCV) in HIV-1-infected patients (nice SEROCO cohort). DT 9404 AU Quaranta JF; Delaney SR; Alleman S; Cassuto JP; Dellamonica P; Allain JP; Service de Medecine Interne II, Hematologie, Hopital de; Cimiez, CHU Nice, France. SO J Med Virol. 1994 Jan;42(1):29-32. Unique Identifier : AIDSLINE MED/94141475 AB The prevalence of antibody to hepatitis C virus (HCV) in a cohort of 272 HIV-infected patients was assessed by means of 4 anti-HCV assays: a 1st generation and a neutralization test, a 2nd generation test, and a confirmatory test, the dot-blot Matrix HCV immunoassay. The cohort included, as a single risk factor, 35.7% intravenous drug users (IVDUs), 25% homosexual men, 30.1% heterosexual individuals, 5.9% transfused patients, 0.7% occupational infections, and 2.6% patients with unknown infection source, and was studied on entry and in samples collected for up to 36 months. Results showed that on entry (i) sera of 83 out of 272 members of the cohort were positive by the HCV 1st generation EIA (30.5%); 70 were confirmed by the neutralization test (84.3%); (ii) 115 of the cohort were reactive with the 2nd generation HCV EIA (41.3%); (iii) with the dot-blot immunoassay 99 (86.1%) of the cohort were confirmed and 16 remained indeterminate. The overall confirmed HCV antibody-positive rate in these 272 patients was 36.4%. Antibody to HCV was detected in 78.3% of IVDUs, 18.3% of heterosexual individuals, 31.2% of transfused patients, and only 2.9% of homosexual men. The 36-month follow-up of this cohort revealed that 4/145 patients became anti-HCV positive by second generation assay. Hepatitis B markers were frequently associated with HCV in IVDUs (71.1%) but infrequently in heterosexual (8.5%) or homosexual (1.5%) individuals. Our results suggest that HCV 2nd generation EIA used in combination with the semiautomated dot-blot assay as a confirmatory test improves the specificity and sensitivity for HCV antibody detection.(ABSTRACT TRUNCATED AT 250 WORDS) DE Adolescence Adult Aged Biological Markers Blood Transfusion Cohort Studies Comparative Study Enzyme-Linked Immunosorbent Assay Female France/EPIDEMIOLOGY Hepatitis Antibodies/*BLOOD Hepatitis B/COMPLICATIONS Hepatitis C/COMPLICATIONS/*EPIDEMIOLOGY/IMMUNOLOGY Hepatitis C Viruses/*IMMUNOLOGY Homosexuality Human HIV Infections/*COMPLICATIONS/IMMUNOLOGY *HIV-1 Immunoblotting Male Middle Age Recombinant Proteins Substance Abuse, Intravenous Viral Nonstructural Proteins JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).