Fig. 1. The representative pictures for commercialized ImmuneMed Leptospira IgM Duo Rapid test kit from Chuncheon, Korea, indicating negative and positive results for detecting leptospirosis. Red colorization of the test line (T) indicates the presence of human antibody against Leptospira and the red control line (C) represents the valid test result. Demonstration is positive in kit ‘a’ (both P and N windows; 50 and 200 cut-off titres), intermediate in kit ‘b’ (P window; 50 cut-off titre), negative in kit ‘c’ (only red colorization of [C] at both P and N windows), and invalid in kit ‘d’ & kit ‘e’ in ICA results.

ICA = immunochromatographic assay, MAT = microscopic agglutination test.