Spatiotemporal patterns of climate-sensitive vector-borne diseases in Bangladesh: leveraging machine learning and spatial regression for intervention strategies
Background: Bangladesh has seen a noticeable rise in vector-borne diseases (VBD) attributed to climate change. Accurately mapping, predicting, and identifying risk factors of VBD is essential for prevention and control strategies.
Methods: District-level reported cases of VBD (dengue, chikungunya, malaria, filariasis, and yellow fever) were obtained from the Bangladesh Bureau of Statistics alongside meteorological data from NASA (2017–2020). Exploratory spatial analysis, spatial regression, and tree-based ML models were applied for prediction, risk factor identification, and correlation analysis.
Results: Dengue was the most prevalent VBD, peaking in 2019. Dhaka, Pirojpur, Jessore, Bandarban, Rangamati, and Narail exhibited higher incidence rates. Spatial regression identified mean temperature as a major risk factor (β = 16.64, s.e. = 6.39). XGBoost also highlighted mean temperature as the primary determinant, alongside GDP, population size, and healthcare infrastructure.
Conclusions: Findings incorporating the One Health perspective provide insights for early-warning, prevention, and control strategies using ML to combat infectious diseases in Bangladesh and similar endemic countries.