1. Department of Brain Sciences, Imperial College London Hammersmith Hospital London UK
2. Department of Cellular Pathology, Northwest London Pathology Charing Cross Hospital Campus London UK
3. Department of Immunology and Inflammation Imperial College London London UK
4. Department of Infectious Disease Imperial College London London UK
5. Chelsea and Westminster NHS Foundation Trust London UK
6. National Infection Service, United Kingdom Health Security Agency Salisbury UK
7. Pandemic Sciences Centre, Nuffield Department of Medicine Oxford University Oxford UK
8. Department of Neuropathology UCL Queen Square Institute of Neurology London UK
9. Department of Cellular Pathology Queen Elizabeth Hospital Birmingham/University Hospitals Birmingham Birmingham UK
10. Department of Neuropathology Cambridge University Hospitals NHS Foundation Trust Cambridge UK
11. Basic and Clinical Neuroscience Department, Institute of Psychiatry Psychology & Neuroscience, King's College London London UK
12. Multiple Sclerosis and Parkinson's Tissue Bank, Imperial College London Hammersmith Hospital London UK