Imperial College London, University College London - Institute for Global Health, Independent, Imperial College London - Section of Virology, Guy's and St Thomas' NHS Foundation Trust - Harrison Wing, University of Liverpool - Department of Clinical Infection, Microbiology and Immunology, St George's University Hospitals NHS Foundation Trust, Guy's and St Thomas' NHS Foundation Trust - Harrison Wing, North Manchester General Hospital, Guy's and St Thomas' NHS Foundation Trust - Harrison Wing, St George's Hospital - Department of HIV, Barts Health NHS Trust, National Health Service (NHS), Leicester Royal Infirmary, St George's Hospital - Department of HIV, University of Leicester - Department of Respiratory Sciences, Imperial College London - Department of Infectious Disease, North Manchester General Hospital, Barts Health NHS Trust, Guy's and St Thomas' NHS Foundation Trust - Harrison Wing, King's College London - Centre for Clinical Infection & Diagnostics Research, Imperial College London - Department of Infectious Disease, Barts Health NHS Trust, North Manchester General Hospital, Barts Health NHS Trust, University Hospitals of Leicester, Guy's and St Thomas' NHS Foundation Trust - Harrison Wing and Guy's and St Thomas' NHS Foundation Trust - Harrison Wing