title: HBV and HAV infection in chronic hepatitis in Argentina.
abstract: Sera of 155 chronic hepatitis (CH) patients in Argentina were tested for the presence of HBsAg, anti-HBs, anti-HBc, and anti-HAV. Our purpose was to define the role that both virus A and B might play in the etiology and pathogenesis of this condition. The patients were divided into two groups: group I (57) HBsAg-negative; group II (98) HBsAg-positive. The control group consisted of 1,209 healthy blood donors from Banco Central de Sangre de Rosario; 286/1,209 (24%) had viral markers for HBV. In group I, 38/57 (67%) had anti-HBs and/or anti-HBc, but none had anti-HBs alone. Group II showed a higher percentage of males (P less than 0.05). We found similar incidence of anti-HAV among group I, group II, and the control group.
mesh_terms: D000914:Antibodies, Viral / Q000032:analysis; D001118:Argentina; D002908:Chronic Disease; D005260:Female; D006506:Hepatitis A / Q000453:epidemiology* / Q000276:immunology; D035922:Hepatitis A Antibodies; D006509:Hepatitis B / Q000453:epidemiology* / Q000276:immunology; D006510:Hepatitis B Antibodies / Q000032:analysis; D006512:Hepatitis B Core Antigens / Q000276:immunology; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D008297:Male
chemical_list: D000914:Antibodies, Viral; D035922:Hepatitis A Antibodies; D006510:Hepatitis B Antibodies; D006512:Hepatitis B Core Antigens; D006514:Hepatitis B Surface Antigens