Dengue fever, a viral disease transmitted by mosquitoes, has emerged as a critical public health concern in Bangladesh. The country has experienced recurrent outbreaks of dengue, particularly during the monsoon season when mosquito populations thrive. However, Bangladesh is now confronting a distressing escalation of the dengue outbreak, exacerbated by rapid urbanization and climatic changes.
The number of cases and fatalities has been steadily rising, presenting an alarming public health crisis that demands immediate attention. In 2022 alone, Bangladesh recorded a staggering 281 deaths due to dengue, further emphasizing the urgency of the situation. In the first seven months of this year, around 20,000 people have been infected with dengue. More than a hundred patients lost their lives.
Most of the dengue patients are from Dhaka. The Directorate General of Health Service has opened a control room to monitor the denguesituation. Health Department is providing hotline service at 16263. Although dengue patients arereceiving treatment in many hospitals in the capital, the government has declared DNC Hospitalin Mohakhali as a dedicated hospital for dengue to handle the pressure of dengue patients. Thecost of dengue test in all government hospitals has also been reduced from Tk 100 to Tk 50.Two city corporations of Dhaka are running mosquito eradication campaign. Potentialhabitats for dengue mosquitoes are being destroyed. Citizens also need to be aware of this. If water accumulates in and around residence, it must be thrown away. Dengue fever is caused by the dengue virus, primarily transmitted by the Aedes mosquito, particularly Aedes aegypti. These mosquitoes breed in stagnant water, found in various settings such as water containers, discarded tires, and puddles.
The virus exists in four different serotypes, and infection with one provides lifelong immunity to that specific serotype. However, subsequent infections by different serotypes increase the risk of severe dengue, also known as dengue hemorrhagic fever (DHF). Dengue fever often presents with flu-like symptoms, including high fever, severe headache, joint and muscle pain, and rash. Other signs may include nausea, vomiting, and mild bleeding from the nose or gums. In severe cases, DHF may occur, characterized by bleeding, organimpairment, and, in some cases, death. Early diagnosis is crucial for effective management and prevention of complications. Prevention plays a vital role in controlling dengue fever. Creating awareness among individuals, communities are essential to bring dengue situation under control. Local governmentbodies must ensure proper waste disposal, drainage and disposing of unused containers to reducemosquito breeding grounds.
Research institutions and universities should conduct studies to understand the local dynamics of dengue transmission, vector behavior, and theeffectiveness of preventive measures. Dengue fever continues to pose a significant health threat in Bangladesh, particularlyduring the monsoon season. By raising awareness about the disease, its symptoms, and preventive measures, individuals and communities can play a crucial role in reducing the burden of dengue. Adopting preventive measures, such as eliminating mosquito breeding sites and practicing personal protection, can help break the transmission cycle.
Furthermore, community engagement, government initiatives, media involvement, and research collaboration are vital in creating acomprehensive and sustainable approach to combat dengue fever effectively. Together, we canstrive for a dengue-free Bangladesh and safeguard the health and well-being of the citizens.Dengue fever, a mosquito-borne viral disease, has emerged as a serious public health concern in Bangladesh. The disease, caused by the dengue virus and primarily transmitted by the Aedes aegypti mosquito, has seen an alarming rise in cases, especially during the monsoon season. While dengue was once considered a seasonal issue, Bangladesh is now experiencing year-round cases, intensifying the need for effective disease control measures.
Symptoms and severity: Dengue fever typically causes flu-like symptoms, including high fever, headaches, joint and muscle pain, rash, and mild bleeding. Most people recover within two weeks. However, in severe cases, the disease can progress to dengue hemorrhagic fever (DHF) or dengue shock syndrome (DSS), both of which can be fatal without prompt medical treatment. The rise in severe cases has stretched Bangladesh's healthcare system, especially during peak outbreaks.Impact of climate and urbanization: Bangladesh's tropical climate, characterized by heavy monsoon rains from June to September, provides an ideal breeding ground for mosquitoes. Climate change has further extended the dengue season, with cases now being reported throughout the year. Urbanization has also played a major role, as cities like Dhaka struggle with unplanned development, inadequate drainage, and poor waste disposal. These issues lead to a proliferation of mosquito breeding sites.
Prevention and control efforts: The government has initiated several measures to combat dengue. These include:
Eliminating breeding sites: Public health officials promote community efforts to clear stagnant water and clean up potential breeding grounds. Insecticide spraying: Fogging operations help reduce adult mosquito populations, especially during outbreak periods. Public awareness campaigns: educational programs highlight the importance of using mosquito nets, wearing protective clothing, and seeking early medical treatment.
However, controlling dengue remains challenging due to the resilience of the Aedes mosquito and the need for continuous community involvement.
Dengue fever continues to pose a growing health threat in Bangladesh, driven by urbanization, climate change, and limited healthcare resources. To effectively control dengue, Bangladesh must focus on long-term strategies, including improving urban infrastructure, enhancing public health awareness, and strengthening healthcare systems. Without sustained action, the country will struggle to manage this persistent health crisis.
The writer is a development activist & freelancer
