Weil's syndrome.

A case of leptospirosis in an 18-year-old white male was reported. Weil's syndrome was characterized by intense jaundice, acute renal failure, skin ecchymoses and conjunctival suffusion, in addition to meningitis. The polymerase chain reaction for Leptospira was negative, while the titers of the antibody microagglutination test against L. grippotyphosa rose higher than fourfold (up to 1:1,600) in the same blood sample. Patient's treatment consisted of rehydration and supportive care of acute renal failure, besides antibiotic therapy. Penicillin administration started after 6 days of disease. Patient improved without clinical sequelae.