A community-based dengue vector control trial was conducted at transmission foci in Plaeng Yao District, Chachoengsao Province, eastern Thailand. Implementation was done by the local community in collaboration with local administration, public health, and school authorities. Our cost-effective approaches combined a source reduction campaign with appropriate vector control technologies applied within the foci (within 100 m around the foci) and also within schools attended by children from the treated areas. Vector management measures by local government included cleanup campaigns before the rainy season followed by a routine garbage pickup during the rainy season. Locally made screen covers for water jars, a combination of local Bacillus thuringiensis subsp. israelensis and Mesocyclops thermocyclopoides (copepod), and locally made lethal ovitraps were appropriate technologies used by the community in this campaign. The success of our intervention was evidenced by the significant reduction of dengue vectors and dengue hemorrhagic fever cases in treated areas compared with untreated areas.
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