Development and evaluation of monoclonal antibody-based antigen capture enzyme-linked immunosorbent assay for the diagnosis of acute leptospirosis in humans.

Monoclonal antibody (MAb)-based ELISA was developed to detect leptospiral antigens from the plasma of febrile patients. The MAb reacts specifically with pathogenic leptospires and the assay possesses excellent diagnostic test parameters compared to PCR, indicating that this new ELISA is useful for the early diagnosis of leptospirosis with low operational cost.