Why Does Bangladesh Keep Losing the Fight Against Dengue?

As of October 25, dengue had claimed 384 lives in Bangladesh this year. Just how grim the situation has become is clear from the 123,948 patients admitted to hospitals so far. Year after year, vast sums of money are spent on mosquito control, accompanied by high-profile drives launched with great fanfare. Yet the exact same disaster keeps returning. There is no room left to shift the blame for this persistent failure solely onto the Aedes mosquito. Structural weaknesses in our prevention system have proven far more dangerous than the mosquito itself. At its core, a lack of sound planning and purely cosmetic drives are what set this death trap every year.

A look at the figures from recent years makes it obvious that recurring dengue outbreaks have become a chronic crisis. In 2023, the country saw a record 1,705 deaths and more than 321,000 infections. Deaths fell to 575 in 2024 and 413 in 2025, but each year still brought more than 100,000 cases. On October 25 alone, 2,249 dengue patients were hospitalised and seven people died in Bangladesh, according to the Directorate General of Health Services (DGHS). The outbreak has moved well beyond Dhaka, reaching every district across the country. These numbers show we have failed to learn from previous years.

Alongside the failure in prevention, stark disparities in access to healthcare and treatment costs are deepening the crisis. Public hospitals have repeatedly run short of beds during outbreaks. Delays in diagnosis and late admission remain major causes of death. Meanwhile, low-income families are pushed to the brink trying to afford tests, medicines, and care at private hospitals.

Unplanned urbanisation and poor civic management cannot escape blame for the spread of dengue. Stagnant water at construction sites, poor drainage systems, discarded containers, and uncollected solid waste serve as prime breeding grounds for Aedes mosquitoes. While unusual shifts in temperature, rainfall, and humidity driven by climate change are indeed creating favourable conditions for mosquitoes to thrive, climate cannot be used as the sole excuse. It is the mismanagement of urban infrastructure and the institutional failure to maintain year-round mosquito control that have turned this natural risk into a full-scale humanitarian disaster.

Alongside the failure in prevention, stark disparities in access to healthcare and treatment costs are deepening the crisis. Public hospitals have repeatedly run short of beds during outbreaks. Delays in diagnosis and late admission remain major causes of death. Meanwhile, low-income families are pushed to the brink trying to afford tests, medicines, and care at private hospitals. In June, the health minister announced that private hospitals would waive 80 per cent of dengue treatment costs, though it is unclear how far this has reached poorer families. The struggle of patients from outside Dhaka rushing to the capital for better treatment makes the situation even worse. This unequal access to care has turned dengue from a medical illness into a broader socioeconomic crisis.

Accountability is a basic requirement for tackling any public health emergency. City corporations, the Directorate General of Health Services, and local government institutions each have distinct responsibilities. Huge budgets are allocated every year for mosquito control, yet we could not find any public, objective assessment of what the money achieved. What each agency did, and how it measured success, remains unclear. We see no real evidence of authorities learning from past mistakes and revising their plans accordingly. Dividing up responsibilities on paper is not enough; there must be a clear system to measure results, pinpoint failures, and fix them.

Breaking out of this cycle of disaster requires moving past blame and adopting practical policy solutions. Prevention must be built as a year-round effort. High-risk areas need to be mapped out before the monsoon, and breeding grounds cleared on a regular basis. Greater emphasis must be placed on science-based mosquito control. Monitoring mosquito density, destroying larvae through appropriate methods, and routinely testing whether insecticides actually work are essential. Integrated urban management also needs to be ensured through regular waste removal and strict inspections of construction sites. At the same time, setting specific targets, publishing regular progress reports, and expanding treatment capacity at the district level are necessary to improve both accountability and healthcare quality. To answer why Bangladesh keeps losing the fight against dengue, recurring outbreaks are not inevitable. Effective prevention, however, demands more than isolated drives; it requires sustained planning, coordination, and accountability.