1. Swiss Tropical and Public Health Institute, P.O. Box, 4002 Basel, Switzerland.
2. University of Basel, Petersplatz 1, 4003 Basel, Switzerland.
3. Centre de Support en Santé Internationale, BP 972, N’Djaména, Chad.
4. Institut de Recherche en Elevage pour le Développement, BP 433, N’Djaména, Chad.
5. Laboratoire Central Vétérinaire, BP2295, Bamako, Mali.
6. Institut Pasteur, Unit Lyssavirus Dynamics and Host Adaptation, WHO Collaborating Centre for Reference and Research on Rabies, 28 Rue du Docteur Roux, 75724 Paris Cedex 15, France.
7. Department of Biosystems Science and Engineering, Federal Institute of Technology (ETH), Mattenstrasse 26, 4058 Basel, Switzerland.
8. Swiss Institute of Bioinformatics, Lausanne, Switzerland.