Countries/territories reporting Dengue cases since February 2023 and as of January 2024

In January 2024, over half a million dengue cases and over 100 dengue-related deaths were reported globally.

Most cases were reported in the WHO PAHO region, with a cumulative number of 550 277 suspected cases reported in the first four weeks of 2024, showing an increase of 189% compared to the same period in 2023, according to the epidemiological bulletin of 8 February 2024.

An upsurge of cases has been reported in Brazil, where all four dengue serotypes are circulating.