1. Transplantation and Clinical Virology, Department of Biomedicine, University of Basel, Switzerland
2. Transplantation and Clinical Virology, Department of Biomedicine, University of Basel, Switzerland / Clinical Virology, Laboratory Medicine, University Hospital Basel, Switzerland
3. Children’s Hospital of Eastern Switzerland and Cantonal Hospital, St Gallen, Switzerland
4. University Women`s Hospital Basel, Switzerland
5. Department of Infectious Diseases, Bern University Hospital, Switzerland
6. Department of Obstetrics and Gynaecology, University Hospitals of Geneva and Faculty of Medicine, Geneva, Switzerland
7. University Children's Hospital Zurich, Switzerland
8. Laboratory of Virology, University Hospital Geneva, Switzerland
9. Institute of Medical Virology, University of Zurich, Switzerland
10. University Children’s Hospital, Basel, Switzerland
11. Transplantation and Clinical Virology, Department of Biomedicine, University of Basel, Switzerland / Clinical Virology, Laboratory Medicine, University Hospital Basel, Switzerland / Infectious Diseases and Hospital Epidemiology, University Hospital Basel, and University of Basel, Switzerland