1. Institut National de Recherche Biomédicale, Kinshasa, Democratic Republic of the Congo.
2. Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
3. Programme national de lutte contre le paludisme, Kinshasa, Democratic Republic of the Congo.
4. Programme national de lutte contre la tuberculose, Kinshasa, Democratic Republic of the Congo.
5. Division provinciale de la santé, Kisangani, Democratic Republic of the Congo.
6. Division provinciale de la santé, Goma, Democratic Republic of the Congo.
7. Division provinciale de la santé, Mbuji-Mayi, Democratic Republic of the Congo.
8. Institut de Recherche pour le Développement, UMR 177 IRD-CIRAD INTERTRYP, Campus International de Baillarguet TA A-17/G, 34398 Montpellier Cedex 5, France.