Table 2.

Time between onset of symptoms and positive and negative tests in 51 patients with acute leptospirosis

MethodNegative tests (days after onset)Positive tests (days after onset)
MAT (titer ≥800)5.18.1
IgM-ELISA (titer ≥160)5.06.6
IgM-dipstick4.86.5
IHA5.07.3