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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]
Dengue fever is a mosquito-borne disease caused by dengue virus, prevalent in tropical and subtropical areas. It is frequently asymptomatic ; if symptoms appear they typically begin 3 to 14 days after infection.
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]
Cases of dengue fever “are likely to increase as global temperatures increase” as the result of climate change as it expands the range for mosquitoes, the CDC warned. About one in four people ...
Takeda's vaccine, given in two doses over a three-month interval, protects against four serotypes of the dengue virus. It was cleared by WHO for use in children aged 6 to 16 in areas with high ...
So far in 2024, cases of dengue fever in countries in the Americas have reached record-breaking levels, with more than 9.7 million reported cases — twice the number for the entire year in 2023 ...
The test was once part of the World Health Organization (WHO) algorithm for diagnosis of dengue fever, [3] however it is no longer used in the latest WHO guidance. [4] Studies have shown that the tourniquet test has low predictive value for dengue fever and should be used in conjunction with other tests for a reliable diagnosis. [5] [6] [7] [8]
Dengue fever will become a major threat in the southern United States, southern Europe and new parts of Africa this decade, the WHO's chief scientist said, as warmer temperatures create the ...