Figure 3From: Impact of long-term treatment of onchocerciasis with ivermectin in Kaduna State, Nigeria: first evidence of the potential for elimination in the operational area of the African Programme for Onchocerciasis ControlPrevalence of onchocerciasis infection in the Kauru/Lere focus, Kaduna, Nigeria, before and after 15-17 years of ivermectin treatment.Back to article page