1. Nuffield Department of Medicine, University of Oxford,
2. Department of Microbiology, Leeds Teaching Hospitals NHS Trust,
3. Calderdale and Huddersfield NHS Foundation Trust,
4. City Hospitals Sunderland NHS Foundation Trust,
5. St. Helens and Knowsley Teaching Hospitals NHS Trust, Merseyside,
6. Guy’s & St Thomas’ NHS Foundation Trust, London, and
7. Great Western Hospitals NHS Foundation Trust, Swindon, United Kingdom