Fig. 1From: Low prevalence of epilepsy and onchocerciasis after more than 20 years of ivermectin treatment in the Imo River Basin in NigeriaMap showing the locations of Umuezeala and Umuoparaodu. Distance from the Imo river: Umuezeala = 1.07 km; Umuoparaodu = 1.17 kmBack to article page