University Hospital Würzburg - Institute for Clinical Neurobiology, University Hospital Würzburg - Institute for Clinical Neurobiology, University Hospital Würzburg - Department of Neurlogy, University Hospital Würzburg - Department of Neurlogy, Julius-Maximilians-University Wuerzburg - Department of Microbiology, Julius-Maximilians-University Wuerzburg - Imaging Core Facility, University Hospital Würzburg - Institute for Clinical Neurobiology, Julius-Maximilians-University Wuerzburg - Department of Biotechnology and Biophysics, Julius-Maximilians-University Wuerzburg - Department of Biotechnology and Biophysics, Julius-Maximilians-University Wuerzburg - Department for Neuropathology, University Hospital Würzburg - Department of Neurlogy, Julius-Maximilians-University Wuerzburg - Imaging Core Facility and University Hospital Würzburg - Institute for Clinical Neurobiology