Cédric Hirzel1, Susanne Nueesch2, Thomas Wendland3, Rupert Langer4. 1. Department of Infectious Diseases, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland. cedric.hirzel@insel.ch. 2. Department of Emergency Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland. 3. Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland. 4. Institute of Pathology, University of Bern, Bern, Switzerland.