Intervention research on onchocerciasis and lymphatic filariasis.
D003153:Community Health Services; D003906:Developing Countries; D004605:Elephantiasis, Filarial / Q000453:epidemiology / Q000517:prevention & control* / Q000628:therapy; D006801:Humans; D009855:Onchocerciasis / Q000453:epidemiology / Q000517:prevention & control* / Q000628:therapy; D011159:Population Surveillance; D014944:World Health Organization