1. Department of Hematology and Bone Marrow Transplantation Hospital Israelita Albert Einstein São Paulo Brazil
2. Instituto Israelita de Ensino e Pesquisa (IIEP)Hospital Israelita Albert Einstein São Paulo Brazil
3. Department of Infectious Diseases Hospital Israelita Albert Einstein São Paulo Brazil
4. Department of Infectious Diseases Universidade Federal de São Paulo São Paulo Brazil
5. Virology Laboratory Institute of Tropical Medicine University of São Paulo São Paulo Brazil