1. Infectious Diseases Service, Lausanne University Hospital and University of Lausanne , Lausanne , Switzerland
2. Department of Cardiology, Lausanne University Hospital and University of Lausanne , Lausanne , Switzerland
3. Department of Cardiology, University Hospital Zurich and University of Zurich , Zurich , Switzerland
4. Department of Cardiac Surgery, Lausanne University Hospital and University of Lausanne , Lausanne , Switzerland
5. Department of Cardiac Surgery, University Hospital Zurich and University of Zurich , Zurich , Switzerland
6. Department of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich and University of Zurich , Zurich , Switzerland