Figure 3.

The association between the average time needed to reach the 1% target of microfilariae (mf) prevalence and mf prevalence at t = 0, for programs based on annual distribution of diethylcarbamazine + albendazole in the African region. The upper panels show how the history of control affects this association, assuming that coverage is 65% from t = 0 onward, independent of the history of control. The lower panels show how the program duration in treatment-naive settings depends on achieved coverage and compliance patterns from t = 0 onward. Horizontal line at t = 3 indicates 2020. Note that the black lines in the upper and lower panels per model are the same. Abbreviations: cov., coverage; syst., systematic.