1. Department of Neurology; University Hospital of Schleswig-Holstein; Kiel Germany
2. Institute of Neuropathology; University Medical Center Göttingen; Göttingen Germany
3. Neuroimmunology Unit Institute of Clinical Chemistry; University Hospital of Schleswig-Holstein; Kiel Germany
4. Institute for Virology, Medical Faculty; Heinrich Heine University; Düsseldorf Germany
5. Department of Radiology and Neuroradiology; University Hospital of Schleswig-Holstein; Kiel Germany
6. Division of Neuroimmunology, Department of Neurology, Center for Virology and Vaccine Research, Department of Medicine; Beth Israel Deaconess Medical Center; Boston MA