Seroprevalence of hepatitis C antibody in Peru

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Abstract
The prevalence in Peru of antibody to hepatitis C virus (anti‐HCV) was determined in a survey of populations living in the northern jungle region and in groups at high risk of parenterally and sexually transmitted diseases. All sera were initially screened for anti‐HCV using commercial first and second generation ELISAs; repeatedly reactive sera were further verified with a second generation immunoblot assay. Serum samples were also tested by ELISA for HBsAg, anti‐HBs, and anti‐HBc. None of 2,111 sera obtained in the survey of jungle residents was positive for anti‐HCV by immunoblot assay. Twelve of 16 HIV‐1antibody positive hemophiliacs, one of 103 HIV‐1 antibody positive homosexuals, and three of 602 HIV‐1 negative registered female prostitutes were positive for anti‐HCV. A high prevalence of total markers of hepatitis B infection was found in all subjects, especially in older subjects and groups at high risk of parenterally and sexually transmitted diseases. The findings of this study indicate that seropositivity for hepatitis C virus antibody is uncommon in Peru except in high risk groups and suggest that the epidemiology of hepatitis C differs substantially from hepatitis B.