Various research groups with ongoing projects in the areas of personal data protection, reuse of public sector information and open data organised a seminar on October 29, 2020, on reuse and big data in the field of health in which researchers, managers and policymakers from different disciplines participated. Starting from the premise of the special importance that access to health data has as a resource for research, management and development of health products, treatments and interventions and, at the same time, its consideration as a special category of data that is particularly sensitive, private and protected, this document seeks to systematise the main conclusions reached.Diferentes grupos de investigación con proyectos vigentes en ...