This proposal addresses the growing number of autochthonous mosquito-borne diseases in mainland France and the need to develop acceptable disease control and communication strategies with input from the general population and other key decision-making entities. In 2023, the French health authorities have identified more than 30 autochthonous dengue cases, including the first case ever identified in the Parisian region of Ile-de-France. There exists a multitude of preventive strategies against mosquito-borne diseases, but evidence is still lacking in mainland France to understand public knowledge and acceptance of prevention techniques. Prior studies of knowledge, attitudes, and practices (KAP) have focused on the southern regions of France, but with increased spread of autochthonous cases, research must also be expanded to include a more general French population. Additionally, there are new prevention methods on the horizon whose acceptability has not yet been studied in metropolitan France. We therefore propose to conduct a series of KAP assessments and discrete choice experiments among the general metropolitan French population, collecting enough information to understand how their disease history and risk of exposure influence their attitudes, behaviors and preferences. Lastly, we will co-construct communication tools that will be available for health authorities to implement during future mosquito seasons.