Publication: Resistance of Aedes aegypti (Diptera: Culicidae) Populations to Deltamethrin, Permethrin, and Temephos in Cambodia
Issued Date
2018-03-01
Resource Type
ISSN
10105395
Other identifier(s)
2-s2.0-85044432776
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Mahidol University
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SCOPUS
Bibliographic Citation
Asia-Pacific Journal of Public Health. Vol.30, No.2 (2018), 158-166
Suggested Citation
Sébastien Boyer, Sergio Lopes, Didot Prasetyo, John Hustedt, Ay Sao Sarady, Dyna Doum, Sony Yean, Borin Peng, Sam Bunleng, Rithea Leang, Didier Fontenille, Jeffrey Hii Resistance of Aedes aegypti (Diptera: Culicidae) Populations to Deltamethrin, Permethrin, and Temephos in Cambodia. Asia-Pacific Journal of Public Health. Vol.30, No.2 (2018), 158-166. doi:10.1177/1010539517753876 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/46912
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Title
Resistance of Aedes aegypti (Diptera: Culicidae) Populations to Deltamethrin, Permethrin, and Temephos in Cambodia
Abstract
© 2018, © 2018 APJPH. Dengue fever is a major public health concern, including 185,000 annual cases in Cambodia. Aedes aegypti is the primary vector for dengue transmission and is targeted with insecticide treatments. This study characterized the insecticide resistance status of Ae aegypti from rural and urban locations. The susceptibility to temephos, permethrin, and deltamethrin of Ae aegypti was evaluated in accordance with World Health Organization instructions. All the field populations showed lower mortality rate to temephos compared with the sensitive strain with resistance ratio 50 (RR50) varying from 3.3 to 33.78 and RR90 from 4.2 to 47 compared with the sensitive strain, demonstrating a generalized resistance of larvae to the temephos in Cambodia. Ae aegypti adult populations were highly resistant to permethrin regardless of province or rural/urban classification with an average mortality of 0.02%. Seven of the 8 field populations showed resistance to deltamethrin. These results are alarming for dengue vector control, as widespread resistance may compromise the entomological impact of larval control operations. Innovative vector control tools are needed to replace ineffective pesticides in Cambodia.