As of September 8, 2026, 1,183 probable and 58 confirmed cases of yellow fever have been reported in Colombia, with symptom onset between January and August. 95% of the cases originate from Tolima, 3.44% from Cundinamarca, and 1.56% from Meta. 28 deaths were recorded, of which 27 were attributed to yellow fever, resulting in a fatality rate of 46.5%. No human cases were confirmed between September 2 and 8. In 2026, 32 epizootics in non-human primates were confirmed, the most recent on September 4 in Icononzo. Between 2024 and 2026, 206 confirmed human cases and 86 attributable deaths were accumulated in eleven departments, in addition to three imported cases from Venezuela.


