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1 September 2006 Malaria Transmission and Insecticide Resistance of Anopheles gambiae (Diptera: Culicidae) in the French Military Camp of Port-Bouët, Abidjan (Côte d’Ivoire): Implications for Vector Control
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Abstract

An important vector control program is ongoing to lower the risk of malaria transmission in the French military camp of Port-Bouët, Abidjan (Côte d’Ivoire). However, some autochthonous malaria cases are regularly suspected. An entomological survey was conducted in June 2004 in the camp to assess malaria transmission and evaluate the pyrethroid and organophosphate resistance of the malaria vectors. The average mosquito biting rate was 178.0 bites per person per night. Mosquitoes belonging to the Anopheles gambiae (Diptera: Culicidae) complex and the Anopheles funestus group were collected. An. gambiae s.s. molecular form M was the only species of the An. gambiae complex present. The average number of An. gambiae bites was ≈44.3 per person per night. The circumsporozoite index was 0.38% and the entomological inoculation rate estimated to be 1.2 infective bites per week for the study period. The kdr and ace1 gene frequencies in the An. gambiae population were 0.70 and 0.15, respectively. Personnel living in the French barracks of Port-Bouët are thus at high risk of being bitten by parasite-infected mosquitoes. Such an entomological inoculation rate, usually found in African peri-urban environments, was unexpected considering the extensive effort deployed to control mosquitoes in the camp. Insecticide resistance could explain the inefficacy of the vector control program but the spraying strategy is also questionable.

Romain Girod, Eve Orlandi-Pradines, Christophe Rogier, and Frederic Pages "Malaria Transmission and Insecticide Resistance of Anopheles gambiae (Diptera: Culicidae) in the French Military Camp of Port-Bouët, Abidjan (Côte d’Ivoire): Implications for Vector Control," Journal of Medical Entomology 43(5), 1082-1087, (1 September 2006). https://doi.org/10.1603/0022-2585(2006)43[1082:MTAIRO]2.0.CO;2
Received: 2 September 2005; Accepted: 3 April 2006; Published: 1 September 2006
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