Displacements of Simulium damnosum and strategy of control against onchocerciasis

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
R Le BerreB Philippon

Abstract

Regular aerial treatment of 14 000 km of watercourses has achieved and maintained, over an area of 700 000 km2 of West African savannah, a very high degree of control of the larvae of Simulium damnosum sensu stricto and S. sirbanum, the vectors of onchocerciasis in this area. However, particular and relatively restricted parts of this area, mainly in northern Ivory Coast and neighbouring parts of Upper Volta, experience regular and prolonged reinvasions by parous female vectors, which have already taken bloodmeals (and many of them carrying the parasites) and arrive from unknown sources probably hundreds of kilometres away, from directions probably between southwest and north. This reinvasion, now experienced in three successive years, represents the outstanding scientific, epidemiological and logistic problem still facing the WHO Onchocerciasis Control Programme. An outline is presented of the multidisciplinary investigations being undertaken to find a solution.

References

May 29, 2012·Trends in Parasitology·Andy CrumpSatoshi Omura
Nov 23, 2006·Transactions of the Royal Society of Tropical Medicine and Hygiene·María-Gloria BasáñezDavid Kelly
Jun 30, 1990·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·R Le BerreR A Cheke

Related Concepts

Simulium damnosum
Onchocerciasis
Simulium sirbanum
Reproduction
Insect Vectors
Larva
World Health Organization
Experience
Genetic Vectors
Diptera

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