title: Enzyme-linked immunoassay for hepatitis B surface antigen. An evaluation of commercial test kits.
abstract: A commercial, licensed test for hepatitis B surface antigen (HBsAg) based upon an enzyme-linked immunoassay principle was evaluated. The sensitivity, when tested under field conditions, was 0.65 and 0.9 ng/ml for ad and ay subtypes of HBsAg, respectively. Only 0.03 percent of 61,798 units of blood screened were reactive and specific for HBsAg while an additional 0.01% gave nonspecific (nonneutralizable) reactivity.
mesh_terms: D001782:Blood Donors; D004797:Enzyme-Linked Immunosorbent Assay; D005189:False Positive Reactions; D006509:Hepatitis B / Q000209:etiology / Q000517:prevention & control* / Q000635:transmission; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D008403:Mass Screening / Q000379:methods; D011863:Radioimmunoassay / Q000379:methods; D065227:Transfusion Reaction
chemical_list: D006514:Hepatitis B Surface Antigens