A cluster-randomized controlled Phase III evaluation of 3D window double screens (3D-WDS) in reducing malaria transmission when combined with pyrethroid-treated long-lasting insecticidal net in north-eastern Tanzania

Vector-borne diseases such as malaria can be prevented by minimizing man-mosquito contact. This is traditionally achieved by using window screens and bednets. Researchers have developed a mosquito screen that can allow mosquitoes to penetrate it from one side but not the opposite side (i.e., a unidirectional screen). When this screen is used for house screening in a double screen setup, in a way similar to window double glazing in western countries, it will trap mosquitoes trying to enter or escape through the window due to the physical characteristics of the unidirectional screen, so the researchers call it the 3D screen. The window double screen setup was tested in the laboratory and in semi-field experimental hut conditions and was found to be effective in capturing mosquitoes. 

• Study design: Two-arm cluster-randomized controlled cross-sectional study
• Primary study design: Interventional
• Secondary study design: Randomised controlled trial
• Trial setting: Community
• Trial type: Prevention

Project information

Product Development
Vector Control

May 2019 — Aug 2021

Tanzania