1. Instituut voor Tropische Geneeskunde, Antwerp, Belgium;
2. Instituto de Higiene e Medicina Tropical, Lisbon, Portugal;
3. Instituto de Salud Carlos III, Madrid, Spain;
4. Université Montpellier 1, Montpellier, France;
5. Istituto Superiore di Sanità, Rome, Italy;
6. Hellenic Pasteur Institute, Athens, Greece;
7. National Reference Laboratory for Animal Health, Nicosia, Cyprus;
8. Ege University Medical School, Bornova, Izmir, Turkey