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28 août 2019
- doi: 10.4000/books.irdeditions.29100
- isbn: 9782709915236
- eisbn: 9782709925280
https://www.openedition.org/12554 , info:eu-repo/semantics/openAccess
Mots-clés
protection de l’écosystème méthode de lutte vecteur milieu aquatique onchocercose insecticide chimique Côte d’Ivoire Surveillance parasite larve insecticide biologique Environmental Studies NAT011000 RNKSujets proches
Disease vector controlCiter ce document
Jean-Marc Hougard et al., « Eliminating Onchocerciasis after 14 Years of Vector Control: A Proved Strategy », IRD Éditions, ID : 10.4000/books.irdeditions.29100
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Résumé
From 1976 through 1989, weekly aerial spraying operations against blackflies were carried out along the rivers of a wide savanna area of West Africa (~700,000 km2) where onchocerciasis was hyperendemic. The level of endemicity began to decrease significantly after 4 years of vector control and became very low in 1989. This situation has been maintained without any vector control activity or chemotherapy, and no incidence of any new cases has been detected. An ophthalmological study carried out in 2000 has confirmed these good results, showing only cicatricial ocular lesions in the examined population. These results led to the conclusion that 14 years of vector control may achieve long-term elimination of onchocerciasis, even in the absence of chemotherapy, provided that the treated areas are not subjected to any contamination by exogenous parasites carried in infected humans or flies.