1. University of Southampton, Southampton, UK
2. Richard Wells Research Centre, University of West London, London, UK
3. University of Huddersfield, Huddersfield, UK
4. Surrey and Sussex NHS Trust, Redhill, Surrey, UK
5. Health Protection Wales, Cardiff, UK
6. Royal Wolverhampton NHS Trust, Wolverhampton, UK
7. Health Protection Scotland, Glasgow, UK
8. Buckinghamshire NHS Trust, Stoke Mandeville, UK