1. Public Health England Wessex Centre, Whiteley, Hampshire, UK
2. Public Health England, Field Epidemiology Service (Victoria), London, UK
3. Health Education Wessex, Wessex School of Public Health, Winchester, Hampshire, UK
4. National Mycobacterium Reference Laboratory, London, UK
5. Solent NHS Trust, Southampton, UK
6. University Hospital of Southampton, Faculty of Southampton, Life Sciences Building, Highfield Campus, University of Southampton, Southampton, UK