1 Infection Prevention and Control Unit, Infectious Diseases Service, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland. Electronic address: mathias.van-singer@chuv.ch.
2 Infection Prevention and Control Unit, Infectious Diseases Service, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
3 Infection Prevention and Control Unit, Infectious Diseases Service, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland; Swiss National Reference Center for Emerging Antibiotic Resistance, (NARA), University of Fribourg, Fribourg, Switzerland.
4 Department of Otolaryngology, Head and Neck Surgery, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.