1. Institute of Neuroimmunology and Multiple Sclerosis, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
2. Division of Infectious Diseases, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
3. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
4. Department of Neurology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
5. German Center for Infection Disease (DZIF), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany