1 Department of Global Health and Infection, Brighton and Sussex Medical School, Brighton, UK; Oxford University Clinical Research Unit, Ho Chi Minh City 70000, Vietnam.
2 Centre for Inflammation and Tissue Repair, UCL Respiratory, Division of Medicine, University College London, London, UK; Department of Rheumatology, University College London Hospital, London, UK.
3 School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK.
4 University Hospitals Bristol NHS Foundation Trust & Translational Health Sciences, University of Bristol, Bristol, UK.
5 Oxford University Clinical Research Unit, Ho Chi Minh City 70000, Vietnam; Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, UK. Electronic address: syacoub@oucru.org.