1. KEMRI/Wellcome Trust Research Programme, Kilifi
2. Nyanza Reproductive Health Society, Kisumu
3. Sex Worker Outreach Program (SWOP), and Partners for Health and Development in Africa (PHDA), Nairobi, Kenya
4. Public Health Service of Amsterdam, Department of Infectious Diseases
5. Stichting HIV Monitoring
6. Amsterdam UMC location University of Amsterdam, Infectious Diseases
7. Department of Global Health, University of Amsterdam, Amsterdam, Netherlands
8. University of Illinois at Chicago, IL
9. University of Washington, Seattle, WA, USA
10. University of Oxford, Headington, UK
11. The Aurum Institute, Johannesburg, South Africa.