Dr Tozzi is a pediatrician and an epidemiologist with experience in vaccines and epidemiology of transmissible diseases. He has worked as a researcher with the Italian National Health Institute for more than 15 years, participating and coordinating several projects concerning the prevention and surveillance of infectious diseases. In 2004 Dr Tozzi moved to the Bambino Gesù Children’s Hospital, where he continued to work in vaccine preventable diseases and started developing projects on eHealth and digital medicine. Dr Tozzi is currently Head of the Multifactorial and Complex Diseases Research Area. Among the others, he is involved in projects dealing with vaccine communication on Internet. He represents the Bambino Gesù Children’s Hospital in the International Society for Pediatric Innovation and collaborates with the WHO Vaccine Safety Network.