1. Department of Medicine I, Division of Infectious Diseases and Tropical Medicine, Medical University of Vienna, Austria
2. Centre de Recherches Médicales de Lambaréné, Gabon
3. Institut für Tropenmedizin, Universität Tübingen, Germany
4. German Center for Infection Research, partner site Tübingen, Germany
5. Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine, Germany
6. I Department of Medicine University Medical Center Hamburg-Eppendorf, Germany
7. Bernhard Nocht Institute for Tropical Medicine, World Health Organization Collaborating Centre for Arbovirus and Hemorrhagic Fever Reference and Research, Germany
8. German Centre for Infection Research, partner site Hamburg-Luebeck-Borstel, Hamburg, Germany