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This contribution presents the dynamics generated by the COVID-19 pandemic since March 2020 in the humanities and social sciences (SHS) in France. It first describes the main elements of the individual and institutional involvement that give this dynamic the characteristics of an "extra-ordinary" mobilization. Based on a collective research report, it goes on presenting the research themes and issues, as well as the methodological and epistemological reflections put forward by the SHS on the subject of the pandemic and its management. This contribution thus gives an account of the way in which the SHS participate in a social and political understanding of health issues. By carrying out research themes and issues that are sometimes new and sometimes deeply rooted in the scientific capital that is theirs concerning health and environmental crises, the SHS bring their contribution to the description and the analysis of the foundations and consequences of these crises on individuals and societies: knowledge likely to enlighten public decision-making.