Question 14942 — health

Summary

Mr. Vincent Trébuchet draws the attention of the Minister of Health, Families, Autonomy and People with Disabilities to the worrying proliferation of the tiger mosquito in the Rhône plain and, more broadly, in Auvergne-Rhône-Alpes, as well as to the health risks associated with this proliferation. Long perceived as tropical pathologies, dengue, chikungunya and the Zika virus now constitute a health risk real in mainland France. In Auvergne-Rhône-Alpes, Public Health France recorded 269 cases of dengue fever, 4 cases of chikungunya and 1 case of Zika in 2024, an unprecedented level since the implementation of reinforced surveillance. Two indigenous cases of dengue fever have also been identified in Drôme, confirming that the risk is no longer limited to imported cases alone. This evolution is favored by the establishment of the tiger mosquito in all the departments of the region, but also by climatic conditions increasingly conducive to its proliferation: heat, rainy episodes, residual humidity and multiplication of stagnant water. In this regard, the Rhône valley appears to be a priority area for vigilance, due to its climatic characteristics, its urbanization and the presence of numerous potential larval breeding sites. If the campaigns of raising awareness among individuals are useful, they are no longer sufficient in the face of a now structured risk. Vector control requires more coordinated action between the State, ARS, communities and mosquito control operators, as well as rapid intervention means when outbreaks are identified. Also, he asks what measures the Government intends to take to strengthen prevention, surveillance and the treatment of tiger mosquito proliferation zones, particularly in the Rhône plain. He wants to know if mapping of stagnant water and larval breeding sites will be undertaken in the most exposed territories. He also asks if the Government plans to adapt the regulatory framework applicable to vector control, in order to allow, when the health situation justifies it, targeted treatments, proportionate and strictly supervised infested areas. Finally, he would like to know the timetable for these measures and the public funds likely to be devoted to them.

Machine translation from French. The official text remains authoritative.

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