1. Tropical Medicine, Infectious Diseases Service, Hospital Ramón y Cajal, Instituto Ramon Y Cajal De Investigación Sanitaria, Madrid, Spain
2. Department of Infectious and Tropical Diseases, Hôpital Nord, Marseille, France
3. Division of Primary Care Medicine, Department of Community Medicine And Primary Care, University Hospitals of Geneva and Geneva University, Geneva, Switzerland
4. Institute for Infectious and Tropical Disease, University of Brescia, Brescia, Italy
5. http://www.istm.org/eurotravnet/main.html