Longitudinal field evaluation of outdoor Anopheles and non-Anopheles host-seeking in response to a volatile pyrethroid spatial emanator (SE) product among forest-dwelling indigenous residents of Sumatra, Indonesia

Abstract

The SE device evaluated in this field trial was effective in reducing outdoor human exposure to Anopheles and non-Anopheles mosquito host-seeking activity. The effect was not found to depend upon the age of the device, suggesting that the protection was persistent over the 4-week replacement period during this study. There was an association between hour of collection and intervention efficacy, suggesting the possibility of species-specific effects which were not further investigated. The SE device is a promising, low-cost, easily deployable, and distributable intervention that reduces exposure to mosquitoes with consequent impacts on transmission in outdoor environments.

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