1. Rega Institute, Katholieke Universiteit Leuven, Leuven, Belgium
2. Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
3. Laboratório de Biologia Molecular, Centro Hospitalar de Lisboa Ocidental, Lisboa, Portugal
4. Department of Infectious Diseases, Hospital Carlos III, Madrid, Spain
5. HPA Birmingham, Heartlands Hospital, Birmingham, UK
6. Fondazione IRCCS Policlinico, San Matteo, Italy
7. AIDS Reference Laboratory, Université Catholique de Louvain, Brussels, Belgium
8. Incidence and Case Surveillance Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
9. Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Lisboa, Portugal
10. Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Superior de Ciências da Saúde Egas Moniz, Monte de Caparica, Portugal
11. Unidade dos Retrovírus e Infecções Associadas, Centro de Patogénese Molecular, Faculdade de Farmácia de Lisboa, Lisboa, Portugal
12. Centro de Malária e outras Doenças Tropicais, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisboa, Portugal
13. Departments of Biomathematics and Human Genetics, David Geffen School of Medicine; Department of Biostatistics, School of Public Health; University of California, Los Angeles, USA