The 2023 dengue fatality in Bangladesh: Spatial and demographic insights

Asaduzzaman, Md; Khan, Emil Arham; Hasan, Mohammad Nayeem; Rahman, Mahbubur; Ashrafi, Shah Ali Akbar; Haque, Farhana; Haider, Najmul

Abstract

In 2023, Bangladesh faced the largest dengue outbreak, resulting in 321,179 confirmed cases and 1705 fatalities. This study aims to characterize dengue fatalities and analyze their determinants and spatial influence. Using data from the Management Information System of the Ministry of Health and Family Welfare, we characterized dengue mortality and conducted a linear regression analysis to determine the impact of age groups and gender on case fatality rate (CFR). We used a geographically weighted Poisson regression model to assess the spatial influence and impact of population factors. Women had a higher CFR than men (0.75% vs 0.38%, <0.05). Among the recorded deaths, 74% (n = 1262) developed dengue shock syndrome, 17% (n = 290) expanded dengue syndrome, and 7% (n = 119) dengue hemorrhagic fever. The 10-year age groups significantly impacted CFR (estimate: 0.03, <0.01), suggesting that each additional decade increased CFR by 30%, whereas gender was insignificant. Higher deaths were observed in the southern regions, whereas spatial clusters were primarily concentrated around Dhaka City, the epicenter of the outbreak. Substantial effects from neighboring districts were also identified. Bangladesh's 2023 dengue outbreak resulted in significant mortality, particularly, among older age groups. Fatalities were clustered in Dhaka City and its neighboring districts, especially in the south. [Abstract copyright: © 2025 The Author(s).]

Citation

Asaduzzaman, M., Khan, E. A., Hasan, M. N., Rahman, M., Ashrafi, S. A. A., Haque, F., & Haider, N. (2025). The 2023 dengue fatality in Bangladesh: Spatial and demographic insights. IJID Regions, 15(June 2025), 1-6. https://doi.org/10.1016/j.ijregi.2025.100654

• Journal Article Type: Article
• Acceptance Date: Apr 18, 2025
• Online Publication Date: Apr 22, 2025
• Publication Date: Apr 22, 2025
• Deposit Date: Jun 2, 2025
• Journal: IJID Regions
• Print ISSN: 2772-7076
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 15
• Issue: June 2025
• Article Number: 100654
• Pages: 1-6
• DOI: https://doi.org/10.1016/j.ijregi.2025.100654
• Keywords: Spatial cluster, Geographically weighted Poisson model, Geographical influence, Population burden, Dengue mortality
• Public URL: https://keele-repository.worktribe.com/output/1274803
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S277270762500089X?via%3Dihub
• Additional Information: This article is maintained by: Elsevier; Article Title: The 2023 dengue fatality in Bangladesh: Spatial and demographic insights; Journal Title: IJID Regions; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.ijregi.2025.100654; Content Type: article; Copyright: © 2025 The Author(s). Published by Elsevier Ltd on behalf of International Society for Infectious Diseases.