title: Viral hepatitis A and B: a seroepidemiological study of a non-hepatitic Sydney population.
abstract: The age-specific prevalence rates of hepatitis A and B virus markers in 683 patients of all ages with non-hepatitic illnesses admitted to a Sydney hospital over the period from 1971 to 1974 were determined. The pattern of prevalence rates of hepatitis A antibody (anti-HAV) appeared to be a cumulative one, with steadily increasing rates in patients up to the age of 40 years. Thereafter a large increase in prevalence occurred. In contrast, prevalence rates for hepatitis B virus (HBV) markers were fairly uniform for all age groups. Antibody to core antigen (anti-HBc) was the most frequent marker of HBV infection. Prevalence rates in subjects of non-Anglo-Saxon origin were higher for both HAV and HBV markers.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis; D000956:Antigens, Viral / Q000032:analysis; D001315:Australia; D002648:Child; D002675:Child, Preschool; D005006:Ethnicity; D005260:Female; D006506:Hepatitis A / Q000276:immunology*; D006509:Hepatitis B / Q000276:immunology*; D006510:Hepatitis B Antibodies / Q000032:analysis; D006512:Hepatitis B Core Antigens / Q000032:analysis; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006507:Hepatovirus / Q000276:immunology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged
chemical_list: D000914:Antibodies, Viral; D000956:Antigens, Viral; D006510:Hepatitis B Antibodies; D006512:Hepatitis B Core Antigens; D006514:Hepatitis B Surface Antigens