1. Department of Infectious Diseases, University Hospital Bern, Bern, Switzerland
2. Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
3. Division of Clinical Microbiology, University Hospital Basel, Basel, Switzerland
4. Institute for Infectious Diseases, University of Bern, Bern, Switzerland
5. Infectious Diseases Department, Biel Hospital, Biel, Switzerland