1. Department for Infectious Disease Epidemiology, Robert Koch Institute, Berlin, Germany
2. Department of Neurology, Section of Translational Neuroimmunology, Jena University Hospital, Jena, Germany
3. Hans Berger Department of Neurology, University Hospital Jena, Jena, Germany
4. Institute for Neuropathology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
5. Department of Neurology, University Hospital Halle/Saale, Halle/Saale, Germany
6. Department of Neuropathology, Institute of Pathology, Hannover Medical School (MHH), Hannover, Germany
7. Independent researcher, Bad Pyrmont, Germany
8. Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
9. Department of Neuroradiology, University Hospital Jena, Jena, Germany