1. Infections in Immunocompromised Hosts Group; Hospital das Clínicas, University of São Paulo School of Medicine; São Paulo; Brazil
2. Department of Pathology; University of São Paulo School of Medicine; São Paulo; Brazil
3. Laboratory of Microbiology; Hospital das Clínicas, University of São Paulo School of Medicine; São Paulo; Brazil
4. Renal Transplantation Unit, Urological Division; Hospital das Clínicas, University of São Paulo School of Medicine; São Paulo; Brazil