University of Liverpool - Institute of Infection and Global Health, University College London - UCL Queen Square Institute of Neurology, University of Liverpool - Institute of Infection and Global Health, University of Liverpool - Institute of Infection and Global Health, University of Liverpool - Institute of Infection and Global Health, Encephalitis Society, Alder Hey Children's Hospital, Tropical and Infectious Diseases Unit, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK, Government of the United States of America - Division of High Consequence Pathogens and Pathology and University of Liverpool - Institute of Infection and Global Health

University of Liverpool - Institute of Infection and Global Health, University of Liverpool - Institute of Infection and Global Health, University of Liverpool, University of Liverpool, North Manchester General Hospital, University College London - UCL Queen Square Institute of Neurology, University of Liverpool - Institute of Infection and Global Health, Wayne State University, University of São Paulo (USP) - Institute of Tropical Medicine, King Saud University, University of Brescia - Department of Clinical and Experimental Sciences, Institute of Post-Graduate Medical Education and Research - Bangur Institute of Neurosciences, Department of Neurology, National Neuroscience Institute, World Health Organization (WHO) - Brain Health Unit, King’s College London, Government of the United States of America - Division of High Consequence Pathogens and Pathology, University of Liverpool, University of Liverpool, University of Liverpool and University of Liverpool - Institute of Infection and Global Health