Recent data show an alarming surge in hospital admissions and fatalities owing to dengue fever, necessitating immediate government intervention to control the epidemic. Official figures from September 26 reveal an additional three fatalities and record 829 patients admitted to hospitals for treatment. In August, reported dengue incidences spanned 47 districts, with Dhaka recording the most cases. Notably, regular anti-mosquito measures – despite being flawed and insufficient, have seen a significant reduction since the fall of the Awami League regime, prompting questions.
Official anti-mosquito drives were disrupted due to the student uprisings during July-August, typically the peak monsoon season. Industry experts are concerned that the reality of the outbreak might be graver than reported figures, largely due to limited access to healthcare services or dengue testing capabilities during the curfew ordered by the Awami League government in July. It is critical that the interim government heed these warnings and recommence anti-mosquito drives without delay, while incorporating lessons from shortcomings in previous dengue prevention tactics.
Historical data from 2023 paints a grim picture with more than 3.21 lakh hospital admissions and 1,705 fatalities – the highest since surveillance of this mosquito-borne disease commenced in Bangladesh. The anti-mosquito initiatives spearheaded by the government at that time received widespread criticism due to their ineffectiveness in controlling the progression of the disease. Entomologists have deemed the fogging methods and chemicals used for larvae and adult mosquito control as ineffective. Hand-held foggers deployed by urban authorities to exterminate larvae were evidently less efficient than vehicle-mounted foggers. Furthermore, a lack of sufficient hospital beds and necessary medications to treat dengue patients further exacerbated the problem.
Epidemiology research suggests that dengue outbreaks are most common during monsoon seasons. However, in 2023, there was an atypically high incidence of the disease during the dry season. This shift in outbreak patterns has not been addressed by current preventive policies and warrants immediate attention. In order to prevent a repeat occurrence of the lethal 2023 outbreak, the current government must devise a rapid response to the emerging dengue crisis. This strategy should encompass reinstating anti-mosquito drives with specific interventions for high-risk areas, doubling efforts in mosquito control, and bolstering hospitals with necessary resources and medications.
Moreover, recognizing the shifting behaviors and patterns of the dengue outbreak, notably during dry seasons or heatwaves, is significant. The government must direct resources towards investigating this shift and engage with agencies such as the Institute of Epidemiology, Disease Control, and Research, among others, in order to cultivate a comprehensive understanding of the outbreak. This understanding will enable the confection of targeted prevention and therapeutic strategies to better manage future outbreaks.