Chikungunya Threat: Europe Faces Tropical Disease Risk

A painful tropical disease, chikungunya, can now be transmitted by mosquitoes across most of Europe, a recent study revealed. Higher temperatures from the climate crisis mean infections are possible for extended periods annually, even reaching south-east England for two months. Scientists warn that continued global warming will inevitably lead to further northward expansion of the disease.

The analysis, the first to fully assess temperature's effect on the virus in the Asian tiger mosquito, found a significantly lower minimum temperature for infections, a 'quite shocking' difference from previous estimates. Previously confined to tropical regions with millions of annual infections, chikungunya causes debilitating joint pain and can be fatal in vulnerable groups.

Large-scale outbreaks have already occurred in France and Italy in 2025, with hundreds of cases reported. Experts emphasize the rapid changes, noting a dramatic increase in chikungunya cases in France within the last year. The invasive Asian tiger mosquito, active during the day, is spreading as temperatures rise, and while not yet established in the UK, has been detected there.

While costly vaccines exist, avoiding bites remains the best protection. Health authorities are urged to implement surveillance systems, community education on mosquito breeding prevention, and personal protection measures. The study's detailed risk mapping will assist local authorities in planning targeted actions against this escalating threat.