1. Department of Microbiology, Institute of Tropical Medicine, Antwerp,1 and
2. The Flanders Interuniversity Institute for Biotechnology (VIB), Zwijnaarde,2 Belgium;
3. Laboratoire de Santé Hygiène Mobile, Ministère de la Santé, Yaoundé, Cameroon3;
4. Tropical Diseases Research Centre, Ndola, Zambia4;
5. Programme National de Lutte contre le SIDA, Cotonou, Bénin5;
6. National AIDS/STD Control Programme, Nairobi, Kenya6;
7. London School of Hygiene & Tropical Medicine, Department of Infections and Tropical Diseases, London, United Kingdom7;
8. Henry M. Jackson Foundation, Rockville, Maryland8;
9. Swedish Institute for Infectious Disease Control, Karolinska Institute, Stockholm, Sweden9;
10. Harvard Institute and the Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, Massachusetts10;
11. Department of Human Retrovirology, Amsterdam, The Netherlands11;
12. National Centre for Research in Virology, University of Bergen, Bergen, Norway12; and
13. Department of Chronic Viral Infections, National Public Health Institute, Helsinki, Finland13