As El Niño tightens its grip across nine Colombian regions, the ancient relationship between climate and disease is being rewritten at an accelerated pace. Extreme heat compresses the Aedes aegypti mosquito's life cycle, amplifies dengue virus replication, and drives drought-stricken families toward water storage practices that inadvertently become breeding grounds for the very insects they fear. What emerges is not a single crisis but a convergence — heat, drought, mosquito, and bacterium forming a chain that public health authorities are racing to interrupt before it becomes unmanageable.
El Niño Could Trigger Dengue Surge in Colombia as Heat Accelerates Mosquito Reproduction
Increased dengue and gastrointestinal disease cases affecting Colombian populations, particularly those dependent on stored water during drought conditions.