1. Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich
2. Institute of Medical Virology, University of Zurich, Zurich
3. Department of Biosystems Science and Engineering, ETH Zurich
4. SIB Swiss Institute of Bioinformatics, University of Basel, Basel
5. Swiss National Center for Retroviruses, University of Zurich, Zurich
6. Laboratory of Virology and Division of Infectious Diseases, Geneva University Hospital, Geneva
7. Molecular Virology, Department of Biomedicine–Petersplatz, University of Basel, Basel
8. Division of Immunology and Allergy, Lausanne University Hospital, Lausanne
9. Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern
10. Division of Infectious Diseases, Lausanne University Hospital, Lausanne
11. Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel
12. Division of Infectious Diseases, Cantonal Hospital St. Gallen, St. Gallen
13. Division of Infectious Diseases, Regional Hospital Lugano, Lugano, Switzerland