In the last quarter of 2011, the Spatial Repellant in Malaria Control study conducted at Southwest Sumba, East Nusa Tenggara, has entered its 2nd year. The project, funded by Bill & Melinda Gates Foundation, begins the Spatial Repellant Intervention (SR Intervention) activity at UmbuNgedo and Wainyapu villages, Kodi District of Southwest Sumba. As part of a 4 year study, the research team which comprises members from Eijkman Institute for Molecular Biology, Faculty of Medicine, Hasanuddin University of Makassar, and the Eijkman-Oxford Clinical Research Unit, Jakarta, initiate the activity to identify the impact on mosquito coils, as provided by SC Johnson, in reducing Malaria infections among villagers in the two most infected areas. 180 people participate on this study from both villages. Initial study conducted on October 2011 with an estimated period of 8 months.