Additional file 1: Figure S1. Location of TKMI programme area. The main map shows Angola (dark gray) and Namibia (light gray) and depicts provincial boundaries within each country. The numerical labels indicate the administrative areas in which the TKMI program was implemented: (1) = Namibe; (2) = Cunene; (3) = Kunene; (4) = Omusati; (5) = Ohangwena. The black rectangle within the main map shows the region being demonstrated in the inset map. The inset map shows the TKMI programme area and the crosses show the 64 villages selected for the evaluation of the malaria control programme. The horizontal line in the middle of the inset map represents the Angola–Namibia border.