1. Manchester Centre for Sexual Health, Manchester, UK
2. Mortimer Market Centre, London, UK
3. North Manchester General Hospital, Manchester, UK
4. Jefferiss Wing Centre for Sexual Health, Imperial College Health Care NHS Trust, London, UK
5. The Public Health England/Clinical Virology Laboratory, Manchester Royal Infirmary, Manchester, UK
6. CEG Editor
7. Clinical Effectiveness Group, British Association for Sexual Health and HIV, Macclesfield, UK