1 Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK. Electronic address: [email protected].
2 Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK.
3 National Mycobacterial Reference Service, National Infection Service, Public Health Laboratory Birmingham, Heartlands Hospital, Bordesley Green, Birmingham, UK.
4 Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, OX3 9DU, UK.
5 Nuffield Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK; National Infection Service, Public Health England, London, UK.