SUPPRESSION OF FALSE POSITIVE REACTION IN SERODIAGNOSIS OF PULMONARY TUBERCULOSIS BY ENZYME LINKED IMMUNOSORBENT ASSAY (ELISA) USING BOVINE SERUM ALBUMIN

Several immunodiagnostic tests had been tried for the detection of serum antibodies, in tubercular patients. However, results were found to present insignificant reproducibility. The more recent enzyme linked immunosorbent assay was employed in 215, clinically suspected tubercular cases along with 15, healthy controls. The assay was performed with and without 0.2 per cent BSA and the extent of cross reaction was assessed to establish the technique for serodiagnosis of pulmonary tuberculosis.