title: Enzyme-immunoassay in diagnosis of hepatitis with emphasis on the detection of "e" antigen (HBeAg).
abstract: A brief survey of the application of enzyme-immunoassay (EIA) for the detection of hepatitis B surface antigen (HBsAg), hepatitis A, and their corresponding antibodies is given. The preliminary results of a similar EIA for detection of hepatitis B-related "e" antigen (HBeAg) and its antibody (anti-HBe) are reported. This EIA is much more sensitive than immunodiffusion: at least 128 times for HBeAg and at least 512 times for anti-HBe. HBsAg and its antibody do not interfere with the test. Only a few sera strongly positive for rheumatoid factor gave rise to false-positive results, as was demonstrated by a confirmatory test.
mesh_terms: D002353:Carrier State / Q000175:diagnosis; D003937:Diagnosis, Differential; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods*; D006509:Hepatitis B / Q000175:diagnosis*; D006510:Hepatitis B Antibodies / Q000032:analysis; D006511:Hepatitis B Antigens / Q000032:analysis*; D006801:Humans; D005779:Immunodiffusion; D007124:Immunoenzyme Techniques / Q000379:methods*
chemical_list: D006510:Hepatitis B Antibodies; D006511:Hepatitis B Antigens