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The Cost of Routine Aedes aegypti Control and of Insecticide-Treated Curtain Implementation

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  • Institute of Tropical Medicine “Pedro Kourí,” Havana, Cuba; Greifswald University, Germany; Research Institute “Witremundo Torrealba,” Los Andes University, Trujillo, Venezuela; Faculty of Public Health, Burapha University, Chonburi, Thailand; Epidemiology and Disease Control Unit, Institute of Tropical Medicine, Antwerp, Belgium; Office of Diseases Prevention and Control, Chonburi, Thailand
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Insecticide-treated curtains (ITCs) are promoted for controlling the Dengue vector Aedes aegypti. We assessed the cost of the routine Aedes control program (RACP) and the cost of ITC implementation through the RACP and health committees in Venezuela and through health volunteers in Thailand. The yearly cost of the RACP per household amounted to US$2.14 and $1.89, respectively. The ITC implementation cost over three times more, depending on the channel used. In Venezuela the RACP was the most efficient implementation-channel. It spent US$1.90 (95% confidence interval [CI]: 1.83; 1.97) per curtain distributed, of which 76.9% for the curtain itself. Implementation by health committees cost significantly (P = 0.02) more: US$2.32 (95% CI: 1.93; 2.61) of which 63% for the curtain. For ITC implementation to be at least as cost-effective as the RACP, at equal effectiveness and actual ITC prices, the attained curtain coverage and the adulticiding effect should last for 3 years.

Author Notes

*Address correspondence to Alberto Baly, Instituto de Medicina Tropical “Pedro Kourí,” Subdireccion de Epidemiologia, Autopista Novia del Mediodia Km 6½ La Lisa, Ciudad de La Habana, Cuba. E-mails: baly@ipk.sld.cu or balygil@yahoo.com

Financial support: The study reports partial results of the project DENCO-Towards successful dengue prevention and control, financed by the European Union (INCO-CT-2004-517708).

Authors' addresses: Alberto Baly, Instituto de Medicina Tropical “Pedro Kourí,” Subdireccion de Epidemiologia, Ciudad de La Habana, Cuba, E-mails: baly@ipk.sld.cu or balygil@yahoo.com. Steffen Flessa, University of Greifswald, Faculty of Law and Economics, Greifswald, Germany, E-mail: Steffen.Flessa@uni-greifswald.de. Marilys Cote and Elci Villegas, Instituto “Witremundo Torrealba,” Universidad de Los Andes Nucleo Universitario “Rafael Rangel,” Trujillo, Venezuela, E-mails: cotema2003@yahoo.com and elciv@ula.ve. Thirapong Thiramanus, Department of Public Health Fundamentals, Faculty of Public Health, Burapha University, Chonburi, Thailand, E-mail: thirapon@buu.ac.th. Veerle Vanlerberghe and Patrick Van der Stuyft, Institute of Tropical Medicine, Antwerpen, Epidemiology and Disease Control Unit, Antwerp, Belgium, E-mails: vvanlerberghe@itg.be and pvds@itg.be. Somchai Jirarojwatana, Regional Office of Disease Prevention and Control (Region 3), Chon Buri, Thailand, E-mail: rjiraroj@hotmail.com.

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