title: Hepatitis B e antigen in volunteer and paid blood donors.
abstract: Sera from 200 volunteer donors and 200 paid blood donors, all positive for hepatitis B surface antigen (HBsAg), were tested for the presence of hepatitis B e antigen (HBeAg).HBeAg was detected in 31 HBsAg-positive paid donors (15%), and in 11 HBsAg-positive volunteer donors (5%) by agar gel diffusion. The presence of HBsAg was associated with higher titers of HBsAg. No significant difference was found in the prevalence of antibody to HBeAg (anti-HBe) in the two donor groups. Rheumatoid factor was not associated with the presence or absence of HBeAg or anti-HBe, indicating that HBeAg is probably not an anti-IgG. These data support the epidemiological evidence that paid blood donors appear to be more likely than volunteer donors to transmit hepatitis B virus infection to recipients of their blood.
mesh_terms: D000375:Aging; D000888:Antibodies, Anti-Idiotypic; D001782:Blood Donors; D006509:Hepatitis B / Q000635:transmission; D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens; D006514:Hepatitis B Surface Antigens; D006515:Hepatitis B virus / Q000276:immunology; D006801:Humans; D007074:Immunoglobulin G; D012217:Rheumatoid Factor; D014836:Volition
chemical_list: D000888:Antibodies, Anti-Idiotypic; D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens; D006514:Hepatitis B Surface Antigens; D007074:Immunoglobulin G; D012217:Rheumatoid Factor