Agricultural Development and Vector-Borne Diseases (FAO - HABITAT - UNEP - WHO, 1996, 91 p.): Topic A: Vector-borne diseases of relevance to agriculture: A.15 A victim of river blindness (onchocerciasis)

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Agricultural Development and Vector-Borne Diseases (FAO - HABITAT - UNEP - WHO, 1996, 91 p.)

Topic A: Vector-borne diseases of relevance to agriculture

		List of slides
		I. About PEEM (Panel of Experts on Environmental Management for Vector Control)
		A.1 Table of diseases
		A.2 Global status of major vector-borne diseases
		A.3 Global distribution of schistosomiasis: S. mansoni and S. intercalatum in Africa and the Americas
		A.4 Global distribution of schistosomiasis: S. haematobium, S. japonicum and S. mekongi in Africa and Asia
		A.5 Children infected with schistosomiasis
		A.6 Global distribution of malaria
		A.7 Number of malaria cases reported by WHO Region
		A.8 Girl suffering from malaria, the Gambia
		A.9 Distribution of yellow fever in Africa
		A.10 Distribution of yellow fever in the Americas
		A.11 Distribution of lymphatic filariasis in Africa and the Americas (WHO map 92353)
		A.12 Distribution of lymphatic filariasis in Asia (WHO map 92354)
		A.13 Distribution of onchocerciasis in Africa, with an indication of the area covered by OCP (WHO map 94910)
		A.14 Distribution of onchocerciasis in the Americas (WHO map 94911)
		A.15 A victim of river blindness (onchocerciasis)
		A.16 Aerial view of an abandoned village in an area affected by onchocerciasis in West Africa
		A.17 Distribution of Old World and New World visceral leishmaniasis (WHO map 89963)
		A.18 Distribution of cutaneous and muco-cutaneous leishmaniasis in the New World (WHO map 891104)
		A.19 Distribution of cutaneous leishmaniasis due to L. tropica and L. aethiopica in the Old World (WHO map 89962)
		A.20 Distribution of cutaneous leishmaniasis due to L. major in the Old World (WHO map 891105)
		A.21 A case of cutaneous leishmaniasis
		A.22 A case of cutaneous leishmaniasis
		A.23 Oriental sore (cutaneous leishmaniasis in the Eastern Mediterranean)
		A.24 Distribution of Japanese encephalitis cases by endemic country over the period 1986-1990
		A.25 Distribution of sleeping sickness foci in West and Central Africa
		A.26 Distribution of sleeping sickness vectors Glossina morsitans and G. pallidipes in East and southern Africa
		A.27 Distribution of sleeping sickness vectors G. palpalis, G. fuscipes and G. tachinoides in West Africa
		A.28 An example of sleeping sickness vector ecology in southern Africa

A.15 A victim of river blindness (onchocerciasis)

Slide A.15 A victim of river blindness (onchocerciasis)

Long-term exposure to the infected bites of blackflies causes blindness. In the most endemic areas in Africa, where OCP started its work, it was a common phenomenon to have the majority of community members being guided by the younger members who could still see. Blindness is a result of the microfilaria load, affecting the skin and the eyes. Microfilaria are the larvae of Onchocerca volvulus living in the bloodstream of the victims.