1. Laboratory of Immunopathology, Clinical Hospital, Federal University of Paraná, Curitiba, Brazil;
2. Evangelic University Hospital of Curitiba, Curitiba, Brazil;
3. Department of Medicine, Positivo University, Curitiba, Brazil;
4. Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany;
5. Department of Clinical Analysis, Federal University of Paraná, Curitiba, Brazil