As the world eagerly anticipates the Paris 2024 Olympics, the Ile-de-France Region (IDFR), the epicenter of this grand event, faces an unexpected and potentially serious health risk. The region has recently seen a concerning rise in imported cases of chikungunya, Zika, and dengue, all arboviral diseases transmitted by the Aedes albopictus mosquito. This vector, known for thriving in temperate climates, has increasingly established itself in parts of the IDFR, raising alarms about the potential for local outbreaks during the Games. The Growing Threat in Ile-de-France The IDFR’s first dengue outbreak last fall was a stark reminder of the region’s vulnerability to arboviral diseases. This has fueled growing apprehension, particularly among public health experts and the media, that the influx of visitors during the Olympics could trigger autochthonous (locally transmitted) outbreaks in Paris. Unlike the Rio 2016 Olympics, where the primary concern was the global spread of the Zika virus