Kembangan dengue cases drop 60% after Wolbachia trial
As of June 7, only 3 cases were recorded, well below June 2025's 49 in the West Jakarta district once the city's highest-risk area.
Dengue fever cases in Kembangan, West Jakarta, fell 60% in January-May 2026 after the area became a trial site for Wolbachia-infected Aedes aegypti mosquitoes. Data from the West Jakarta Health Agency recorded 89 cases in that period, down from 227 cases in January-May 2025 and 377 cases in the same period in 2024. The program was first launched by the DKI Jakarta provincial government in RW 07 Kembangan Utara in October 2024, then expanded to Kembangan Selatan, Meruya Utara, Meruya Selatan, Joglo, and Srengseng. West Jakarta Health Agency head Sahruna said the decline also pushed Kembangan's incidence rate to seventh place in West Jakarta. Through June 7, 2026, only three cases had been recorded, compared with 49 cases in June 2025.