1. These authors contributed equally to the manuscript
2. Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
3. Infectious Diseases Department, Biel Hospital, Biel, Switzerland
4. Institute for Infectious Diseases, University of Bern, Bern, Switzerland
5. Applied Microbiology Research Unit, Department of Biomedicine, University of Basel, Basel, Switzerland
6. Division of Clinical Microbiology, University Hospital Basel, Basel, Switzerland
7. Federal Office of Public Health, Bern, Switzerland
8. Service of Hospital Preventive Medicine, Lausanne University Hospital, Lausanne, Switzerland
9. Department of Infectious Diseases, University Hospital Basel, Basel, Switzerland