Dr Puthucheary said in a video on social media that the four locations were selected based on factors such as historical dengue risk and the size of their Aedes mosquito populations.
“Residents in these areas can expect releases of male Project Wolbachia mosquitoes twice a week,” he added.
Since the start of Project Wolbachia in 2016, Singapore has been progressively releasing Wolbachia mosquitoes across the country.
In October last year, Singapore also announced the expansion of Project Wolbachia to five additional sites – Serangoon Central, Serangoon North, Jurong East, Jurong West, and an expansion of an existing study site in Hougang.
