3301. The fixed-wing aeroplane can make accurate insecticide drops at 60 mph over open stretches of river Subject(s): AircraftWorld Health Organization
3302. A pest that causes all the trouble. A close-up of the blackfly, Simulium damnosum, feeding on human blood Subject(s): World Health Organization
3303. The dull patch in a victim's eye shows where the parasitic worm transmitted by the black-fly's bite has caused irreparable damage. The only real answer to onchocerciasis is to wipe out the fly wherever there are human settlements Subject(s): World Health Organization
3304. The face of desperation. River blindness has robbed this west African not merely of his sight but much of his earning power at an age when he should have been making his greatest contribution to the community Subject(s): World Health Organization
3305. This man being led through a village in Upper Volta is blind as a result of river blindness - onchocerciasis - and nearly 60 per cent of the people in his village suffer from this disease Subject(s): ChildWorld Health Organization
3306. One of the telltale sings of onchocerciasis is the fibrous nodule which forms under the victim's skin. This child of two already has such a nodule on his head Subject(s): MothersMother-Child RelationsChildWorld Health Organization
3307. In districts heavily infected with onchocerciasis there are villages where all the adults are blind Subject(s): ChildWorld Health Organization
3308. ... villagers of Djipologo, Upper Volta, who have lost their sight due to onchocerciasis Publication: [1950-1965?] Subject(s): Onchocerciasis, Ocular -- epidemiologyBlindnessEye DiseasesBurkina FasoWorld Health Organization
3309. For many thousands of West African onchocerciasis is a reality that leaves an unhappy legacy of damaged or destroyed eyesight Publication: 1978 Subject(s): Onchocerciasis, OcularEye DiseasesBlindnessAfrica, WesternWorld Health Organization
3310. Onchocerciasis victim in the village of Tienkura, Upper Volta Subject(s): World Health Organization.