Dengue Spread in Europe Fueled by Aedes albopictus Mosquitoes

Dengue fever, caused by the dengue virus and transmitted through mosquito bites, has long been associated with tropical regions. Historically the disease has been endemic in Latin America, the Caribbean, and Southeast Asia, where the primary vector, *Aedes aegypti*, thrives in warm, humid climates. The virus spreads rapidly in these areas, often resulting in seasonal outbreaks that strain local health systems.

Since 2010, local transmission of dengue has been documented in several mainland European countries, marking a significant shift in the disease’s geographic reach. The spread is largely linked to the establishment of *Aedes albopictus*—the Asian tiger mosquito—in southern Europe. Although *Aedes aegypti* remains the main vector worldwide, *Aedes albopictus* can also transmit dengue, enabling the virus to circulate in temperate regions where the former species is less common. Surveillance reports indicate that the mosquito’s expanding range and the increasing frequency of imported cases have created conditions for sustained local transmission.

The emergence of dengue in Europe underscores the need for enhanced vector surveillance and public health preparedness. Monitoring mosquito populations, improving diagnostic capacity, and educating communities about prevention measures are critical steps to mitigate the risk of further spread. As climate change and global travel continue to influence vector distribution, authorities must remain vigilant to protect populations from this potentially severe disease.