1 Division of Infection, Immunity and Respiratory Medicine, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK.
2 Leicester NIHR Biomedical Research Centre and Department of Respiratory Sciences, University of Leicester, Leicester, UK.
3 Royal Brompton and Harefield NHS Foundation Trust and Imperial College London, London UK.
4 NIHR Southampton Biomedical Research Centre and School of Clinical and Experimental Sciences, University of Southampton, Southampton, UK.
5 Wellcome Wolfson Institute for Experimental Medicine, Queens University, Belfast, UK.
6 Cambridge University Hospitals NHS Foundation Trust, Royal Papworth Hospital NHS Foundation Trust, and University of Cambridge, Cambridge, UK.
7 UCL Department of Respiratory Medicine, UCL, and UCLH NHS Foundation Trust, London, UK.
8 Oxford NIHR Biomedical Research Centre and MRC Human Immunology Unit, University of Oxford, Oxford, UK. Electronic address: ling-pei.ho@imm.ox.ac.uk.