Programme africain de lutte contre l’onchocercose (APOC) : transmission d’Onchocerca volvulus par Simulium damnosum S. l. dans deux régions de la République Centrafricaine

Parasite

et A. Sékétéli¹  D. Kayembé⁴  L. Yaméogo¹  M. Noma¹  G. Fobi³  E. Louango²  S. Traoré⁶  P. Enyong⁵ 

[1] WHO/APOC,Ouagadougou,Burkina Faso;Ministère de la santé,Bangui,République Centrafricaine;Chief Drug Distribution and Training, Special Intervention Zones (SIZ, Kara,Togo;GTNO, Cliniques Universitaires,Kinshasa,République Démocratique du Congo;Tropical Medicine Research Station,Kumba,Cameroon;Programme national de lutte contre l’onchocercose,Ouagadougou,Burkina Faso

关键词: Central African Republic;    vector capacity;    Simulium damnosum s. l.;    onchocerciasis;    impact assessment;    APOC;   

Others  :  808729
DOI  :  doi:10.1051/parasite/2006131035

【 摘 要 】

Entomological baseline data were collected in the villages of Zinga and Boali-Falls in Central African Republic (CAR) in view of the long term impact assessment of community-directed treatment with ivermectin (CDTI). Morphological determinations revealed that flies caught in both sites belong to the sub-group Sou/Sq. In Boali, the nuisance was relatively high with biting rates averaging 243 bites/man/day, with a parous rate of 61.6% and a crude annual transmission potential (ATP) of 8,259 infective larvae/man/year; and the average number of infective larvae per 1,000 parous flies was 177. In Zinga, the mean biting rate was 191 bites/man/day, with a parous rate of 51.6%, a crude ATP of 3,422, and 86 infective larvae per 1,000 parous flies. In conclusion, the vectorial capacity and the entomological indices recorded are characteristic of high onchocerciasis transmission zones. However, some of the infective larvae found, maybe of animal origin, need identification to better determine the real level of endemicity.

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© PRINCEPS Editions, Paris, 2006