1. Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences Oxford UK
2. Department of Neurology Oxford University Hospitals NHS Foundation Trust Oxford UK
3. Department of Experimental Psychology University of Oxford Oxford UK
4. Department of Neurology, Queen Elizabeth Hospital University Hospitals Birmingham NHS Foundation Trust Birmingham UK
5. Department of Neurology, Queen's Medical Centre Nottingham University Hospitals NHS Trust Nottingham UK
6. St Peter's Hospital Ashford and St Peter's NHS Hospitals Foundation Trust Chertsey UK
7. Translational Neuroimmunology Group, Faculty of Medicine and Health University of Sydney Sydney New South Wales Australia
8. Department of Neurology Concord Hospital Sydney New South Wales Australia
9. The Encephalitis Society 32 Castlegate, Malton North Yorkshire YO17 7DT UK
10. Department of Clinical Infection, Microbiology and Immunology University of Liverpool Liverpool UK
11. Department of Neurology Odense University Hospital Odense Denmark
12. Department of Clinical Research University of Southern Denmark Odense DK‐5000 Denmark
13. Neuropsychiatry Department Maudsley Outpatients, Maudsley Hospital Denmark Hill London SE5 8AZ UK
14. Nuffield Department of Clinical Neurosciences Oxford UK
15. Departments of Neurology and Neurosciences Mayo Clinic Jacksonville Florida USA