1. Center for Infectious Medicine, Department of Medicine, Karolinska Institutet, Stockholm, Sweden;
2. Wenner-Gren Institute, Stockholm University, Stockholm, Sweden;
3. Etablissement Français du Sang, Université de Nantes, France;
4. Cambridge Institute for Medical Research, Cambridge, United Kingdom;
5. Department of Hematology, Karolinska University Hospital and Division of Hematology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden;
6. Institute of Infection and Immunity, Cardiff University School of Medicine, Heath Park, Cardiff, Wales, United Kingdom;
7. Institute for Cancer Research, Oslo University Hospital, Norway; and
8. Institute of Clinical Medicine, University of Oslo, Norway