1. UMR145, Institut de Recherche pour le Développement (IRD) and Université de Montpellier 1, Montpellier, France
2. Projet Prevention du Sida au Cameroun (PRESICA), Yaoundé, Cameroon
3. Departments of Medicine and Microbiology, University of Alabama at Birmingham, Birmingham, Alabama
4. Department of Microbiology and Molecular Genetics, Harvard Medical School, Boston, Massachusetts 02115
5. VaccinApe, Bethesda, Maryland
6. Department of Anthropology, Washington University, Saint Louis, Missouri 63130
7. Lester E. Fisher Center for the Study and Conservation of Apes, Lincoln Park Zoo, 2001 N. Clark Street, Chicago, Illinois 60614
8. Wildlife Conservation Society, Congo Program, B.P. 14537, Brazzaville, Republic of Congo
9. Faculties of Sciences, University of Kisangani, Democratic Republic of Congo
10. Laboratoire Associé au Centre National de Référence du VIH, CHU Charles Nicolle et Université de Rouen, Rouen, France
11. Department of Biological Sciences, University at Albany, State University of New York, Albany, New York 12222
12. Robert Koch-Institut, Center for Biological Safety, Berlin, Germany
13. Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
14. WWF-CAR, Bangui, Central African Republic