Fig. 1

Map of Republic of Congo (A) showing localities surveyed in Goma Tsé-Tsé (B) and Madibou (C) district. In Goma Tsé-tsé district, the size of the red dot represents the selected village (Ntoula and Djoumouna), and in Madibou district the red striped area represents the selected city (Mayanga) for the survey