1. Microbiology and Infection Control Statens Serum Institut Copenhagen Denmark
2. Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan Italy
3. Moscow Scientific and Practical Centre of Dermatovenereology and Cosmetology Moscow Russia
4. Olafia Clinic Oslo University Hospital Institute of Medicine University of Oslo Oslo Norway
5. Genitourinary Medicine and HIV Leeds Teaching Hospitals NHS Trust Leeds UK
6. WHO Collaborating Centre for Gonorrhoea and other STIs Department of Laboratory Medicine Faculty of Medicine and Health Örebro University Hospital Örebro University Örebro Sweden