Fig. 4From: Impact assessment of onchocerciasis through lymphatic filariasis transmission assessment surveys using Ov-16 rapid diagnostic tests in Sierra LeoneDistribution and Ov-16 IgG4 antibody point prevalence in 5–9 year olds of 177 survey sites (A) and spatially smoothed contour maps of predicted Ov-16 IgG4 antibody prevalence (B) in 2017 in Sierra Leone. The map shows the 16 new district boundaries after redistricting: Koinadugu = Falaba + Koinadugu and Bombali + Port Loko = Bombali + Karene + Port LokoBack to article page