Impact of residual spraying on Rhodnius prolixus and Triatoma dimidiata in the department of Zacapa in Guatemala

Memórias do Instituto Oswaldo Cruz

J Nakagawa²  C Cordón-rosales¹  J Juárez¹  C Itzep¹  T Nonami² 

[1] ,Japan International Cooperation Agency Oficina de Voluntarios Japoneses Guatemala,Guatemala

关键词: Chagas disease;    Rhodnius prolixus;    Triatoma dimidiata;    vector control;    cost analysis;    Guatemala;   

DOI  :  10.1590/S0074-02762003000200019

来源: SciELO

【 摘 要 】

As a vector control program to control Chagas disease in Guatemala, residual spraying of Rhodnius prolixus and Triatoma dimidiata was performed, and its impact was measured in the department of Zacapa. In order to identify infested villages and determine the degree of infestation, a baseline entomological survey to identify municipalities infested with vectors followed by an additional vector survey in areas known to be infested was conducted. Residual spraying using pyrethroid insecticides was performed at all the villages identified as being infested with the vectors. The residual spraying was shown to be highly effective against both vectors by the decrease in infestation indices after spraying. Analysis of the cost-effectiveness of the spraying showed that the average cost of insecticides per house is high when compared with that in Southern Cone countries.

【 授权许可】

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