1 Clinical Neurosciences, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK; University Hospital Southampton NHS Foundation Trust, Southampton, UK.
2 Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, UK.
3 Division of Anaesthesia, University of Cambridge, Cambridge, UK.
4 UCL Queen Square Institute of Neurology, University College London, London, UK.
5 Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
6 Department of Neurology, Royal Victoria Infirmary, Newcastle, UK; Translational and Clinical Research Institute, University of Newcastle, Newcastle, UK.
7 The National Institute for Health Research Health Protection Research Unit for Emerging and Zoonotic Infections, Liverpool, UK; Department of Clinical Infection Microbiology and Immunology, Institute of Infection, Veterinary, and Ecological Sciences, University of Liverpool, Liverpool, UK; The Walton Centre NHS Foundation Trust, Liverpool, UK. Electronic address: benedict.michael@liv.ac.uk.