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Figure 6 | Parasites & Vectors

Figure 6

From: Modelling the impact of ivermectin on River Blindness and its burden of morbidity and mortality in African Savannah: EpiOncho projections

Figure 6

Impact of annual ivermectin distribution on the excess mortality associated with onchocerciasis in savannah areas of Africa . (a) Associated with a high microfilarial load. (b) Associated with vision loss (blindness/visual impairment). (c) Total excess death associated with onchocerciasis. Red, blue and green lines correspond, respectively, to a baseline endemicity of 80%, 60% and 40% microfilarial prevalence. Assumptions are as in Figure 3. The commencement of the intervention at year 1 is represented by the vertical dashed lines. The initially delayed decrease of excess mortality is due to a two-year lag between incidence of death in the present and microfilarial load in the past.

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