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Aspects evolutifs de lonchocercose oculaire en Afrique occidentale, apres trois ans de lutte antisimulidienne


, : Aspects evolutifs de lonchocercose oculaire en Afrique occidentale, apres trois ans de lutte antisimulidienne. Tropenmedizin Und Parasitologie: 304: 482-488

In 4 rural West-African communities with different degrees of ocular affection the development of ocular onchocerciasis was evaluated after 3 yr of vector control. In the area of a successful disruption of the transmission the population with a slight degree of ocular onchocerciasis before control operations started did not show an aggravation of the lesions. In those groups severely affected at the beginning of vector control the lesions showed no progression in the majority of the cases. The diminution of the ocular parasite load, resulting from the reduced transmission, appears to be an important factor in the change of the incidence of blindness and severe ocular lesions attributable to onchocerciasis. The aggravation of ocular lesions was more severe in a community situated in the area reinvaded by the vector than in those that did not experience a reinvasion of the fly.

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