Fig. 4

Annual VL incidence by sub-location in West Pokot County and neighbouring Kakulit (K) and Ngaina (N) sub-locations. High-incidence sub-locations Amolem (A) and Chepserum (C) have been labelled. Arror sub-location (Baringo County, three VL cases) lies outside of the map area, and two cases from Uganda are not shown. In all study years, the highest VL incidence was found in eastern sub-locations, of which several showed an increasing incidence trend over time