A worker sprays insecticide to prevent the spread of dengue mosquitoes in a house in Colombo, Sri Lanka on Feb. 5, 2025. Nearly 50,000 dengue cases were reported in Sri Lanka in 2024 with 24 fatalities, according to the latest figures released by the country's National Dengue Control Unit. (Photo by Ajith Perera/Xinhua)
A worker sprays insecticide to prevent the spread of dengue mosquitoes in a house in Colombo, Sri Lanka on Feb. 5, 2025. Nearly 50,000 dengue cases were reported in Sri Lanka in 2024 with 24 fatalities, according to the latest figures released by the country's National Dengue Control Unit. (Photo by Ajith Perera/Xinhua)