Paolo Bonanni is a Full Professor of Hygiene and Public Health in the School of Human Health Sciences and the Director of the Department of Health Sciences at the University of Florence, Italy. Professor Bonanni’s scientific activity has covered the epidemiology and prevention of infectious diseases, particularly viral hepatitis, diphtheria, tetanus, pertussis, influenza, measles, rubella, varicella, and, most recently, bacterial invasive diseases and human papillomavirus, including clinical trials and economic valuation of vaccination strategies.