A case of Weil's disease requiring steroid therapy for thrombocytopenia and bleeding.

A young New Hampshire man was recently treated for severe Weil's disease caused by serologically diagnosed Leptospira icterohemorrhagiae. In addition to severe renal failure and hepatic disease, his case featured marked thrombocytopenia with multiple evidences of bleeding. A course of steroid therapy was associated with improved platelet counts and amelioration of his hemorrhagic diathesis.