1. Lion Heart Medical Center, Yele
2. Tonkolili District Health Management Team, Magburaka
3. Ministry of Health and Sanitation, Freetown, Sierra Leone
4. Institute of Tropical Medicine, University of Tübingen, Germany
5. Centre de Recherches Médicales en Lambaréné, Gabon
6. Instituto de Microbiologia, Faculdade de Medicina, Universidade de Lisboa, Portugal
7. Center of Tropical Medicine and Travel Medicine, Department of Infectious Diseases, Division of Internal Medicine, Academic Medical Hospital, University of Amsterdam, the Netherlands
8. Masanga Medical Research Unit, Masanga Hospital, Sierra Leone