1. Division of Infectious Diseases , Travel- and Tropical Medicine, , Kunibertskloster 11-13, D-50668 Cologne , Germany
2. Clinic for Internal Medicine, St. Marien Hospital , Travel- and Tropical Medicine, , Kunibertskloster 11-13, D-50668 Cologne , Germany
3. Clinic for Neurology, Heilig-Geist Hospital , Graseggerstrasse 105, D-50737 Cologne , Germany
4. Clinic for Neurological Early Rehabilitation, St. Marien Hospital , Kunibertskloster 11-13, D-50668 Cologne , Germany
5. Department of Rehabilitation Sciences, Faculty of Health, Witten/Herdecke University , Alfred-Herrhausen-Straße 50, D-58455 Witten , Germany