AUTHOR=Amato Laura , Benedetti Guido , Di Giuseppe Paola , Hénaux Viviane , Lailler Renaud , Nordeng Zuzana , Scharffenberg Tora Alexandra Ziesler , Skjerdal Taran , Cito Francesca TITLE=Mapping food surveillance chains through different sectors JOURNAL=Frontiers in Public Health VOLUME=Volume 11 - 2023 YEAR=2023 URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2023.1129851 DOI=10.3389/fpubh.2023.1129851 ISSN=2296-2565 ABSTRACT=European countries are investing in strengthening disease surveillance within a One Health (OH) perspective. Mapping the components of existing disease surveillance systems is a fundamental step in understanding the relationships between its components, and subsequently facilitating their collaboration and integration under a OH approach. In this paper, we describe the methodological approach implemented during the MATRIX project, in the context of the One Health European Joint Programme, to investigate existing surveillance chains across different sectors. Two real-life scenarios are presented as case studies: the surveillance activities in place in France for Salmonella in the pork meat food chain, and in Norway for Listeria monocytogenes in the dairy food chain. The lessons learnt during the mapping process are also reported to share the advantages and drawbacks of the methodology.