Jean Dupouy-Camet1, Fabrizio Bruschi2, Edoardo Pozio3. 1. Medical Faculty, University of Paris, 15 rue de l'Ecole de Médecine, 75006, Paris, France. jean.dupouy-camet@orange.fr. 2. Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy. 3. Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.