One year after a 3-day training course on EBP (Evidence Based Prevention), the 130 participants were sent a follow-up questionnaire intended to estimate the persistence of knowledge and the extent of the use of evaluation techniques in EBP. Although respondents to the questionnaire (73%) and participants to the course were not representative of workers in the health field area, results clearly indicate that major drawbacks the use of EBP are the organization of daily work in prevention activities and the limited knowledge of English (i.e. the language in which most scientific literature related to EBP is available). More education on EBP is advisable, including the application of distant learning techniques into the frame of Continuous Medical Education for all Italian professionals involved in Prevention.