The Catalan Government's Departments of Health and Education have launched the "Sentinella Schools" project to monitor, evaluate and develop recommendations to improve the prevention of the SARS-CoV-2 pandemic in schools in Catalonia. The Living Lab for Health coordinates the participatory research processes of the project to develop recommendations for SARS-CoV-2 prevention with students, families and teachers. This part of the research will be carried out in the framework of the EC-funded CONNECT project.