Tropical Diseases Like Dengue Fever and Chikungunya Are on the Rise in Europe

Doctors in Fano, Italy, reported a larger-than-usual 2024 dengue outbreak with 199 cases, many without recent travel links.

The findings add to growing evidence that mosquito-borne viruses are spreading locally in Europe.

Aedes albopictus, the Asian tiger mosquito, is expanding across the continent as warmer temperatures lengthen transmission seasons.

Experts warn this raises the risk that dengue, chikungunya, and other infections could become established in parts of Europe.