OTHER TESTS :
* TOTAL LEUCOCYTE COUNT - NORMAL OR SLIGHTLY RAISED
* THROMBOCYTOPENIA - MILD
* DETECTION OF SPIROCHETES IN BLOOD , BONE MARROW ASPIRATE OR CSF - MOTILE SPIROCHETES CAN BE SEEN IN FRESH BLOOD BY DARK FIELD MICROSCOPY OR FIXED ORGANISMS CAN BE SEEN BY WRIGHT STAIN , GIEMSA STAIN OR BUFFY COAT PREPARATION.
* WEIL-FELIX REACTION - POSITIVE IN CONVALESCENT PHASE.