1. These authors contributed equally to the manuscript
2. Swiss Centre for Antibiotic Resistance (ANRESIS), Institute for Infectious Diseases, University of Bern, Bern, Switzerland
3. Molecular and Medical Microbiology, Department of Medicine, University Fribourg, Fribourg, Switzerland
4. Institute for Medical Microbiology, University of Zurich, Zurich, Switzerland
5. Laboratory of Bacteriology, Geneva University Hospitals, Geneva, Switzerland
6. Federal Office of Public Health, Division of Communicable Diseases, Bern, Switzerland