1887

Abstract

The aim of this study was to evaluate the prevalence and genetic diversity of hepatitis B virus (HBV) and hepatitis C virus (HCV) in human immunodeficiency virus type 1 (HIV-1)-co-infected Venezuelan patients. The prevalence of HBV and HCV markers of infection in HIV-1 patients was 14 % for anti-hepatitis B core antigen, 3 % for hepatitis B surface antigen and 0.7 % for anti-HCV, respectively. HBV prevalence was higher than HCV, as expected for a country where sexual intercourse, not intravenous drug use, is the main mode of HIV-1 transmission. The HCV genotype distribution in HIV-1-co-infected patients was similar to that obtained in HCV-mono-infected patients, but genotype 1a was more frequent in HIV-1-infected patients. The HBV genotype distribution exhibited differences between mono-infected and HIV-1-co-infected individuals. HBV F3 was the most common subgenotype in both groups, followed by F1b in HIV-1 co-infection and F2 in HBV mono-infection. In addition, genotype G (single infection) was found in an HIV-1-co-infected individual. A high prevalence of occult HBV infection was detected in HIV-1-co-infected naïve patients (18 %), with F2 being the most common genotype (75 %). To the best of our knowledge, these results correspond to the first description of frequency and molecular characterization of HBV and HCV in HIV-1 Venezuelan patients.

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2014-08-01
2019-10-21
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