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By the late 1990s, dengue was the most important mosquito-borne disease affecting humans after malaria, with around 40 million cases of dengue fever and several hundred thousand cases of dengue hemorrhagic fever each year. Significant outbreaks of dengue fever tend to occur every five or six months.
Over the last twenty years, there has been a geographic spread of the disease. Dengue incidence rates have risen sharply within urban areas which have recently become endemic hot spots for the disease. [57] The recent spread of Dengue can also be attributed to rapid population growth, increased coagulation in urban areas, and global travel.
[21] [25] A pregnant woman who develops dengue is at higher risk of miscarriage, low birth weight, and premature birth. [ 26 ] Children and older individuals are at a risk of developing complications from dengue fever compared to other age groups; young children typically suffer from more intense symptoms.
In Bangladesh's ongoing 2023 dengue epidemic season, the country has been witnessing the deadliest outbreak of dengue fever ever since the first outbreak in Bangladesh in 2000. [ 1 ] [ 2 ] [ 3 ] As of 31 December 2023, the Directorate General of Health Services (DGHS) has reported 321,179 hospitalizations and 1,705 deaths due to the Aedes ...
From the beginning of 2024 to EW 18, 5,882 dengue cases were reported, 4,141 (70%) were lab-confirmed, and 27 (0.45%) were severe cases. The number of cases increased to 155% relative to EW 18 in 2023, and 288% compared to the annual average across the last 5 years. 9 deaths have been reported, with a fatality rate of 0.153%. [7]
Dengue virus (DENV) is the cause of dengue fever.It is a mosquito-borne, single positive-stranded RNA virus of the family Flaviviridae; genus Flavivirus. [1] [2] Four serotypes of the virus have been found, and a reported fifth has yet to be confirmed, [3] [4] [5] all of which can cause the full spectrum of disease. [1]
Dengue vaccine is a vaccine used to prevent dengue fever in humans. [9] Development of dengue vaccines began in the 1920s but was hindered by the need to create immunity against all four dengue serotypes. [10] As of 2023, there are two commercially available vaccines, sold under the brand names Dengvaxia and Qdenga. [11] [12]
In the 2023 dengue outbreak in Jamaica, a significant rise in the number of dengue fever cases was reported in Jamaica. In September 2023 The Ministry of Health and Wellness , Jamaica declared it as an outbreak. [ 1 ]