1. Swansea University Medical School, Institute of Life Science, Swansea University, Swansea, Wales, United Kingdom
2. Health Protection Division (Mid and West Wales), Public Health Wales, Swansea, Wales, United Kingdom
3. Wales Centre for Mycobacteriology, Llandough Hospital, Cardiff, Wales, United Kingdom
4. Public Health Wales Microbiology, Swansea, Wales, United Kingdom