Indoor Residual Spraying (IRS) is a widely used strategy for malaria vector control in sub-Saharan Africa. In Northern Uganda, IRS has been implemented to reduce mosquito-borne disease transmission. Field data from 20 villages were collected at three-month intervals, using a stratified random sampling method. Mosquito populations were sampled for species identification and density measurements. Data on IRS application (coverage, quality) was also recorded. During the one-year study period, an average of 95% residual mosquito control efficacy was observed across all villages, with slight variations in effectiveness between rural and urban settings. This study provides evidence that consistent and effective IRS application can significantly reduce malaria vector populations, contributing to public health improvements. Future research should focus on long-term sustainability and cost-effectiveness of the strategy. Communities should be involved in planning and implementation phases to ensure compliance with IRS guidelines. Health authorities should also monitor population dynamics and adjust intervention strategies accordingly. The empirical specification follows Y=₀+^ X+, and inference is reported with uncertainty-aware statistical criteria.
Otieno et al. (Fri,) studied this question.
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