Temporal and Spatial Analysis of Lymphatic Filariasis in Nigeria: Evaluating the Impact of Mass Drug Administration Interventions
DOI:
https://doi.org/10.62054/ijdm/0302.16Abstract
Lymphatic filariasis (LF) remains one of Nigeria’s most persistent neglected tropical diseases, despite over two decades of targeted intervention. This study applied advanced statistical methods to analyze the temporal and spatial patterns of LF in Nigeria from 2013 to 2023, with particular focus on evaluating the effectiveness of the Mass Drug Administration (MDA) program. Annual LF incidence and coverage data obtained from the World Health Organization were analyzed using time series models, interrupted time series regression, and exploratory spatial analysis. The findings revealed that although national LF incidence has declined over time, substantial regional disparities persist, with several northern states maintaining high burden levels. The interrupted time series results indicated that MDA interventions produced statistically significant, though regionally uneven, reductions in disease incidence. Spatial visualization and clustering analyses highlight persistent hotspots, reinforcing the importance of region-specific strategies. The study concluded that sustained MDA coverage, strengthened surveillance, and socio-economic improvements are essential for achieving LF elimination targets by 2030.
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