1. Department of Infectious Diseases, Sahlgrenska University Hospital/Östra, Göteborg, Sweden
2. Clinic of Infectious Diseases, SÄS Borås Lasarett, Borås, Sweden
3. Clinical Department, National Institute for Infectious Diseases, Lazzaro Spallanzani, Rome, Italy
4. Division of Infectious Diseases, San Raffaele Scientific Institute, Milan, Italy
5. Department of Neurology, University of California San Francisco, CA, USA
6. Neurological Department, University Hospital Eppendorf, Hamburg, Germany