Bangladeshi health officials reported an additional 366 dengue fever cases today, bringing the total cases nationally to 56,496.
The death toll remains at 257.
The most affected division is Dhaka, accounting for 70.6% of cases and 60.4% of deaths. Dhaka city, the largest city in Bangladesh, located in Dhaka division, has reported 64.5% of the total number of cases.
Other affected divisions include Chattogram division (13.2% of cases and 24.8% of deaths) and Khulna division (5.5% of cases and 4.8% of deaths).
Currently, all eight divisions in the country are reporting cases and deaths. This is the second-largest outbreak since 2000, with the largest having occurred in 2019.
According to the World Health Organization, he high incidence of dengue cases this year is taking place in the context of an unusual amount of rainfall since June 2022, accompanied by high temperatures and high humidity which have resulted in an increased mosquito population throughout Bangladesh.
Dengue was first recorded in the 1960s in Bangladesh (then East Pakistan) and was known as “Dacca fever”. The establishment of the Aedes aegypti mosquito vector and urban cycles have made dengue endemic in Bangladesh. The growth factor of dengue cases since 2010 appeared to be linked to regional rainfall patterns (May to September) and is coincidental with higher environmental temperatures. Bangladesh’s climate conditions are becoming more favorable for the transmission of dengue and other vector-borne diseases like malaria and chikungunya due to excessive rainfall, waterlogging, flooding, rise in temperature and the unusual shifts in the country’s traditional seasons.
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