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Dengue outbreak now persists throughout the year

Syed Faruk Hossain [Published : Observer, 29 October 2025]

Dengue outbreak now persists throughout the year

Dengue has now become a serious public health crisis in Bangladesh beyond the limits of seasonal disease. As the patient pressure is increasing in Dhaka, it is spreading rapidly throughout the country in all the seasons. Till now the deaths exceeds 2500 during this season. In recent times, unstable weather like 'this sun, this rain' in the country is very helpful for the spread of Aedes mosquitoes. Due to this, the number of dengue patients has increased. As the number of patients increases, so does the number of deaths. Dengue outbreak is increasing due to current heavy rains. Along with climate change, warm and humid weather and occasional rainfall have created ideal breeding conditions for the Aedes mosquito that carries the dengue virus. Although Dhaka is considered a 'hotspot' for dengue, the disease is spreading throughout the country. Even outside the capital, many people are coming to the hospital with this disease.

 

 



Compared to previous years, patients have increased several times.Now the number of patients is increasing everyday. The number of people affected by dengue is close to 60,000. Earlier dengue was mainly an urban disease. But now it has extended to Upazila level. In recent years it has broken seasonal limits and become a year-round panic. The prevalence of dengue fever increases alarmingly during the monsoon and post-monsoon, as this is when the Aedes mosquito breed increases. This year the dengue wave will last till January. This winter outbreak will also be seen due to excess rainfall. Previously, Aedes mosquitoes usually bit during the day, but now in many cases they are biting in the evening as well. This is its behavioral change, which is related to urban lifestyle and climate change. On the other hand, the mode of transmission has also changed due to the genetic modification of the virus. Most affected are 16 to 30 years old. They are the students and working population of the country. They spend more time outdoors, in offices, universities or fields-where mosquitoes breed more. As a result, the risk is high.

 

 



On the one hand, the families are facing premature bereavement, on the other hand, education and economy are severely affected. Both chikungunya and dengue are transmitted by the Aedes mosquito, so this increase in reproduction is simultaneously increasing the spread of both diseases. Therefore, the breeding grounds of Aedes mosquitoes must be destroyed first. Currently, almost two-thirds of the infected are urban dwellers, but the rate of infection is increasing rapidly in rural areas. This trend will make dengue control more difficult in the future. Prevention of dengue starts from our homes. The mosquito that carries the dengue fever virus is Aedes aegypti. This Aedes aegypti is known as dengue mosquito in our country. The dengue-carrying Aedes mosquito is in full breeding season, which is very scary. Meanwhile, the natural breeding areas such as broken roads, leaf axles, tree holes etc. are increasing. The transmission of Aedes mosquito is also taking place. Hospitals in different districts are under pressure. The menace of dengue in the country is increasing at an alarming rate, with the number of cases and deaths increasing rapidly.

 

 

 


Along with climate change, warm and humid weather and occasional rainfall have created ideal breeding conditions for the Aedes mosquito that carries the dengue virus. Analyzing dengue reports from January to October 9, 2025, it can be seen that the number of dengue cases and deaths is increasing every month. Water accumulates in various places due to intermittent rain. Polythene, various food packets, can shells lying around the streets or houses collect water in various reservoirs. Now the Aedes mosquito is spreading from there. The pattern of dengue has changed in the country. On the one hand, as dengue is becoming more dangerous, the 'urban disease' has increased the risk of dengue beyond cities across the country. Dengue is not seasonal anymore; it happens all year round. It is increasing when it starts raining.

 



At the current rate, the number of dengue cases is increasing daily, the spread of the disease may increase in the coming November or the entire winter season. Neither deaths nor infections are decreasing in dengue. Rain is forecast again later this month, which means more mosquito breeding. And the number of patients and mosquitoes alike may increase. As the days go by, the dengue situation is getting worse.Aedes mosquitoes are usually very close to us around our homes and they breed in things we commonly use such as our flower tubs, tin cans, frozen water in fridges, discarded bottles, tires, roof garden areas. We must ensure that water does not accumulate for more than three days and if we do not rest during the day we must hang mosquito nets because the Aedes mosquito bites during the day.

 



The pattern of dengue has changed in the country. On the one hand, as dengue is becoming more dangerous, the 'urban disease' has increased the risk of dengue beyond cities across the country. Dengue is not seasonal anymore; it happens all year round. It is increasing when it starts raining. As the days go by, the dengue situation is getting worse. Dengue is no longer a monsoon threat.

 



As a result, its severity is increasing. In addition to the activities of the responsible organizations to deal with it, common people should also be widely aware. Dengue virus also spreads due to ignorance and lack of cleanliness. Although there are about 29 species of mosquitoes in Bangladesh, dengue, transmitted by the Aedes mosquito, has become an epidemic this year. No other country in the world has recorded so many deaths due to dengue like Bangladesh. The reason for this, they say, is that patients are admitted to hospitals late due to lack of awareness in Bangladesh. It will not happen if the public is aware. Active participation of all should be ensured in all types of anti-mosquito activities. It is not only the government's responsibility. Preventing the spread of dengue by killing mosquitoes is the moral and fundamental responsibility of every citizen,

The writer is former registrar, JSTU