Abstract

AbstractSince 2004, Aedes albopictus has been established in metropolitan France, with more than 58 colonized departments in 2020. The occurrence of this mosquito, vector of the Dengue, Chikungunya and Zika viruses, together with viremic travelers returning from tropical areas, induced several emergences of autochthonous cases since 2010. In addition, neurotropic arboviruses (West-Nile, Toscana and Tick-borne encephalitis) are endemic in some regions of metropolitan France. The etiologic exploration of arboviruses infections should therefore not be limited to travelers, but should also be implemented in diagnostic assumptions upon evocative clinical presentation arising in patient from a French area colonized by the vector. The diagnostic strategy for these arboviruses includes the choice of tools and samples to be taken. It also relies on the clinical form and the time elapsed between onset of disease and sampling. Finally, the diagnosis of arboviruses in mainland France is also of major public health interest with outcomes on vector control and securing blood and organs donations.

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