1. Department of Pediatrics Hospital Pequeno Príncipe (HPP) Curitiba Paraná Brazil
2. Division of Epidemiology and Infection Control Department of Pediatrics Hospital Pequeno Príncipe (HPP) Curitiba Paraná Brazil
3. Division of Bone Marrow Transplant Department of Pediatric Oncology Hospital Pequeno Príncipe (HPP) Curitiba Paraná Brazil
4. Division of Epidemiology and Infection Control Hospital Pequeno Príncipe (HPP) Curitiba Paraná Brazil
5. Pontificia Universidade Católica do ParanáSchool of Medicine (PUC‐PR) Curitiba Paraná Brazil