Dengue cases in Putrajaya fell by 36.2% in the first four months of 2026 compared with the same period last year, the Putrajaya Corporation announced on May 4 [1].
The decline followed the phased release of Wolbachia-infected mosquitoes in high-risk localities, including Precinct 14 and Precinct 18, to curb the spread of dengue [1]. Precinct 14 began releases in 2020 with 588,800 adult mosquitoes deployed in several stages. Releases in Precinct 18 started in October 2025, with 554,400 adult mosquitoes released as of now [1].
Putrajaya Corporation president Datuk Mohd Sakeri Abdul Kadir said, "Data in Putrajaya shows that innovations such as the Wolbachia technology can accelerate dengue control and protect communities more effectively" [1]. He added that the effort supports the city’s commitment to make residential areas safe, allowing children to play without health risks [1].
The Federal Territories Department is reviewing budget effectiveness for dengue prevention, including ongoing community clean-up programmes. It is also considering expanding Wolbachia technology into public housing areas such as PPR estates to broaden protection against dengue [1].
As of April 2026, Putrajaya had implemented the releases in stages within identified dengue hotspots, aiming for faster and more effective control of the disease [1].