Bernhard Philippon

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Complete mortality of Simulium damnosum Theobald s.l. larvae was obtained along a 19 km stretch of the Marahoué River including and downstream of the Danangoro rapids complex in the Bandama Basin of Ivory Coast after treatment with 1.5 ppm/10 min of the Sandoz 402-1-WDC formulation of Bacillus thuringiensis Berliner serotype H-14. Partial control was(More)
Past Achievements in the Control of Onchocerciasis Large-scale control of onchocerciasis commenced over three decades ago, initially through the Onchocerciasis Control The goals of OCP were to eliminate onchocerciasis as a public health problem and to mitigate its negative impact on the social and economic development of affected regions [1–3]. The(More)
The history of onchocerciasis control in Africa and the genesis of the WHO Onchocerciasis Control Programme in West Africa (OCP) are briefly reviewed. The importance of experience gained in anti-locust campaigns in helping to plan the OCP is stressed. Members of the Simulium damnosum species complex are the vectors of onchocerciasis, which OCP is(More)
The fact, as previously established, that a great number of microfilariae remain trapped in the peritrophic membrane of S. damnosum, explains the low proportion of microfilariae passing into the hemocoel. However, it doesn't account for the strong "limitation phenomenon" observed in savannah. Histological analysis shows a growth of the peritrophic membrane(More)