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  • Title: [Incidence of HAV and HBc antibodies in patients with chronic hepatitis].
    Author: Tanno H, Fay O, Roncoroni M, Galimberti B, Palazzi J.
    Journal: Acta Gastroenterol Latinoam; 1980; 10(2):105-11. PubMed ID: 7211130.
    Abstract:
    156 patients with chronic hepatitis were studied in Rosario, Argentina. 98 patients were HBsAg positive (group I) and 58 patients were negative (group II). 209 normal volunteer blood donors served as controls (group III). In all cases the presence of anti-HAV was sought by RIA and was found in 92% of cases in group I, 91% in group II and 82% in group II patients. In groups II and III we also determined the presence of anti-HBcAg by RIA being positive in 65% and 15% respectively (p less than 0.01). There were no differences related to sex, age and type of chronic hepatitis. We conclude, firstly that the percentage of anti-HAV is similar in chronic hepatitis and healthy controls; secondly, that 65% of patients with HBsAg negative chronic hepatitis have evidence of virus B infection demonstrated by the presence of anti-HBcAg; finally we remark the greater sensitivity of RIA over hemmagglutination for the detection of anti-HBcAg.
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