title: Enzyme-linked immunosorbent assay using Mycobacterium tuberculosis antigen 5 for the diagnosis of pulmonary tuberculosis in China.
abstract: Measurement of serum IgG antibody to Mycobacterium tuberculosis antigen 5 by enzyme-linked immunosorbent assay was evaluated as a serodiagnostic test for pulmonary tuberculosis in China. The test was 89% sensitive and 94 to 100% specific with high accuracies of prediction. Among 82 tuberculous patients, antibody titer was related to the extent of pulmonary disease. Among control subjects, false positive tests were encountered among 5 of 52 persons with other pulmonary disease and not among 30 healthy subjects. The characteristics of this test compare favorably with those reported for sputum smear examination.
mesh_terms: D000907:Antibodies, Bacterial / Q000032:analysis; D000942:Antigens, Bacterial / Q000276:immunology*; D002681:China; D004797:Enzyme-Linked Immunosorbent Assay; D005069:Evaluation Studies as Topic; D005189:False Positive Reactions; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis; D009169:Mycobacterium tuberculosis / Q000276:immunology*; D012698:Serologic Tests / Q000379:methods; D012830:Silicotuberculosis / Q000175:diagnosis; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis*
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D007074:Immunoglobulin G