Brussels/Paris/Rome – August 20, 2025
The European Centre for Disease Prevention and Control (ECDC) has issued a stark warning over record levels of mosquito-borne diseases spreading across the continent, particularly in popular tourist destinations. Officials report alarming spikes in West Nile virus, chikungunya, dengue, and Zika infections—with France and Italy experiencing some of the highest case numbers.
According to new data, outbreaks have been recorded in 16 European countries, with southern and Mediterranean regions most affected. Spain, Greece, Croatia, and Portugal are also on high alert as rising temperatures and changing rainfall patterns create ideal breeding grounds for mosquitoes carrying these viruses.
The ECDC’s report describes the surge as “unprecedented” and warns that mosquito-borne diseases may soon become a permanent challenge for Europe, rather than seasonal or imported threats. “We are witnessing the early stages of a new normal where these infections are no longer limited to tropical zones,” said ECDC Director Andrea Ammon.
In Italy, health authorities have confirmed more than 1,200 West Nile cases since June, with several deaths reported in the Emilia-Romagna and Veneto regions. In France, clusters of chikungunya have been identified along the Mediterranean coast, raising concerns ahead of peak tourist season. Greece and Spain have also stepped up monitoring after detecting imported dengue cases that risk local transmission.
Health officials are urging both residents and travelers to take extra precautions, including the use of repellents, mosquito nets, and protective clothing. Some regions are ramping up large-scale spraying campaigns, while others are experimenting with biological controls such as releasing sterile male mosquitoes to reduce populations.
Scientists point to climate change, urbanization, and globalization as key drivers of the spread. Warmer summers and wetter winters have expanded mosquito habitats northward, while international travel has made it easier for viruses to cross borders.
Despite the warnings, authorities emphasize that early detection and rapid response can help contain outbreaks. Hospitals across Europe have been instructed to remain vigilant for symptoms such as fever, rash, headaches, and joint pain, which may indicate mosquito-borne infections.
For millions of holidaymakers traveling to Mediterranean hotspots, the ECDC’s alert is a sobering reminder that public health threats are evolving alongside environmental change. Experts say Europe must adapt quickly, investing in stronger surveillance, faster diagnostics, and more coordinated international response strategies.