1. Medical and Molecular Microbiology Unit, Department of Medicine, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland.
2. INSERM European Unit (IAME, France), University of Fribourg, Fribourg, Switzerland.
3. Swiss National Reference Center for Emerging Antibiotic Resistance (NARA), University of Fribourg, Fribourg, Switzerland.
4. Military Medical Academy, Sofia, Bulgaria.
5. Institute for Microbiology, University of Lausanne and University Hospital Centre, Lausanne, Switzerland.