Associate Professor of Preventive Medicine and Public Health at the University of Palermo Medical Officer at the Epidemiology Unit of the University Hospital of Palermo Referent for COVID-19 Vaccination and of the Vaccination Unit at the University Hospital of Palermo Collaborating Expert on Communication and outreach of COVID-19 Vaccines of the European Medicines Agency Italian National Committee for the National Immunization Plan 2022-2025 Task Force of Sicilian Region for COVID-19 vaccination Task Force of the University of Palermo for COVID-19 containment Author of more than 115 scientific articles on International Indexed Journal Speaker at over 100 International, National, Regional Conferences, Congresses Editorial Committee or Academic Editor or Guest Editor for 7 International Indexed Journal