1. Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Switzerland
2. Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, Switzerland
3. Institute of Medical Virology, University of Zurich, Switzerland
4. Department of Immunopathology of Infectious and Parasitic Diseases, Medical University of Warsaw, Poland
5. Division of Infectious Diseases, Lugano Regional Hospital, Switzerland
6. Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St Gallen, Switzerland
7. Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Switzerland
8. Infectious Diseases Service, Department of Medicine, University Hospital of Lausanne, Switzerland
9. Division of Infectious Diseases, University Hospital Geneva, Switzerland
10. Institute of Global Health, University of Geneva, Switzerland