More than 2.2 million dengue cases and over 1,100 deaths have been reported in 97 countries and territories in the first eight months of 2026, as the climate crisis and urbanization contribute to the expansion of the disease's global range, putting about half of the world's population at risk.

More than 2.2 million dengue cases and over 1,100 deaths have been reported in 97 countries and territories in the first eight months of 2026, as the climate crisis and urbanization contribute to the expansion of the disease's global range, putting about half of the world's population at risk.