1. Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques; Laboratoire des Polymères; Ecole Polytechnique Fédérale de Lausanne (EPFL); Bâtiment MXD, Station 12 CH-1015 Lausanne Switzerland
2. Infection Biology, Department of Biomedicine; University and University Hospital Basel; Hebelstrasse 20 CH-4031 Basel Switzerland
3. Division of Infectious Diseases and Hospital Epidemiology; University Hospital of Basel; Petersgraben 4 CH-4056 Basel Switzerland