Fig 1. Recruitment of patients hospitalized for acute febrile illness compatible with leptospirosis–Salvador, Brazil 2012.
* Undifferentiated fever includes any other febrile illness consistent with acute clinical leptospirosis not elsewhere categorized. EBV = Epstein-Barr virus. HUS/TTP = hemolytic uremic syndrome/thrombotic thrombocytopenic purpura.