Dengue Fever Spreads to High Altitudes in Nepal Amid Climate Change
Dengue fever, a rapidly spreading mosquito-borne disease, has reached new heights in Nepal's Himalayan districts, as documented by photographer Yuri Segalerba. His photo essay, 'The Ascent of Temperatures,' highlights the presence of Aedes aegypti and Aedes albopictus mosquitoes in Chandannath, a town situated at 2438 meters above sea level. Previously, these mosquitoes were found only up to 2100 meters. The spread of dengue in Nepal is attributed to climate change and increased travel, with the virus now present in 76 of the country's 77 districts. In 2025, at least six people died, and around 9000 were infected. The Nepal Health Research Council, in collaboration with the Institute of Tropical Medicine in Belgium, is studying mosquito adaptations to higher altitudes and insecticide resistance. 
