Pediatr Infect Dis J 2015 Sep;34(9):999-1002
From the *Department of Pediatrics, Pediatric Infectious Diseases and Immunology, University of Wuerzburg, Germany; †Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, Amsterdam, The Netherlands; ‡Department of Pediatrics, Hospital Aschaffenburg, Germany; §University Children's Hospital at Dr. von Haunersches Kinderspital, Ludwig Maximilians University, Munich, Germany; ¶Department of Pediatric Hematology and Oncology, University Children's Hospital, Muenster, Germany; ‖Center for Chronic Immunodeficiency, University of Freiburg, Germany; and **Department of Pediatric Hematology, Immunology and Infectious Diseases, Emma Children's Hospital, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.