Statistical Overview of Dengue Outbreaks in Bangladesh: Trends and Comparisons

Dengue fever is an infectious disease transmitted by Aedes mosquitoes which is emerging in Bangladesh causing very frequent attacks with an increasing tendency in the number of cases and fatalities these days. This necessitates immediate and effective preventive strategies. This research will unveil the structure and trend of dengue cases as well as deaths associated with them in Bangladesh between the years 2021-2024 along with seasonal variations and annual variations. Specific month by month analysis may show the periods of high burden and strengthen evidence-based recommendations of prevention and control measures. A quantitative analysis was conducted using monthly dengue case and fatality data from official government sources for 2021–2024. The study identifies seasonal and annual trends to highlight high-risk periods and offers insights into evidence-based public health interventions. The report indicates increases in cases and deaths due to dengue, during the peak months of August and September, around 77,000 cases and 274 deaths in September 2023, the highest in these periods of study. Where, in January 2021 it was 32 and zero respectively. Thus, these data indicate that dengue epidemics follow clear seasonal patterns. This research highlights the necessity of prevention strategies and interventions at critical periods like in August and September. Strengthening disease surveillance vector control programs and advanced arrangements form a basis for reducing morbidity and mortality offering critical insight into the management strategies that would be effective and sustainable in the control of dengue in Bangladesh.