| prevalence of onchocerciasis in ile-ire district, (ifelodun), kwara state, nigeria. | a survey to determine the prevalence of onchocerciasis was carried out in the ile-ire district of kwara state, nigeria between april 1979 and may 1980. of the 4436 subjects examined, 63% were positive for microfilariae of onchocerca volvulus in their skin snips and 51% of these had palpable onchocercal nodules. the infection rate was 40% among those under 10 years of age; the rate was significantly higher (75%) among the older subjects. there was no difference in the prevalence of infection betw ... | 1982 | 7179463 |