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Friday, 25 July 2023
Disease Outbreak News
Dengue in Bangladesh
A Disease Outbreak News (DON) on dengue in Bangladesh was posted on WHO website [https://www.who.int/emergencies/disease-outbreak-news/item/2023-DON481]today, 11 August.
Situation at a glance
From 1 January to 7 August 2023, the Ministry of Health and Family Welfare of Bangladesh reported a total of 69 483 laboratory-confirmed dengue cases and 327 related deaths, with a case fatality rate (CFR) of 0.47%. Of these, 63% of cases and 62% of the deaths were reported in the month of July 2023. Although dengue is endemic in Bangladesh, the current dengue surge is unusual in terms of seasonality and the early sharp increase in comparison to previous years, where the surge started around -late June. The CFR so far this year is relatively high compared to previous years for the full-year period. The pre-monsoon Aedes survey shows that the density of mosquitoes, and the number of potential hotspots is at the highest level in the past five years.
The higher incidence of dengue is taking place in the context of an unusual episodic amount of rainfall, combined with high temperatures and high humidity, which have resulted in an increased mosquito population throughout Bangladesh.
Further information, including the description of the outbreak, epidemiology of dengue, public health response, WHO risk assessment and WHO advice is available in the full text of the DON [https://www.who.int/emergencies/disease-outbreak-news/item/2023-DON481].
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