1. University Hospital of the Goethe University, Frankfurt/Main, Germany
2. Swiss Tropical and Public Health Institute, Basel, Switzerland
3. Faculty of Medicine, University Basel, Basel, Switzerland
4. MVZ Humangenetik Ulm, Ulm, Germany
5. Department of Microbiology and Hospital Hygiene, Bundeswehr Hospital Hamburg, Hamburg, Germany
6. Institute for Medical Microbiology, Virology and Hygiene, University Hospital Rostock, Rostock, Germany