Institution: | 1. Directorate of Research, Studies, and Documentation, National Public Health Organization, Athens, Greece;2. Occupational Medicine, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy;3. Infectious Diseases Department, CIC 1408 Inserm, University Hospital of Saint-Etienne, Saint-Etienne, France;4. University Chair PREVACCI, PRESAGE Institute, Saint-Etienne, France |