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Dengue fever is a mosquito-borne ... The mosquito Aedes aegypti feeding on a human host. Dengue virus is most frequently transmitted by ... Vertical transmission ...
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]
Humans are reservoirs for dengue, so in order to have widespread transmission, enough people must be infected for the mosquitoes to reliably bite someone with the virus so that they can spread it ...
Under the program, authorities release special mosquitoes bred to carry a bacteria called Wolbachia, which blocks the transmission of viruses that cause dengue, zika, and yellow fever. However ...
In 1906, transmission by the Aedes mosquitoes was confirmed, and in 1907 dengue was the second disease (after yellow fever) that was shown to be caused by a virus. [42] Further investigations by John Burton Cleland and Joseph Franklin Siler completed the basic understanding of dengue transmission. [42]
Dengue can be caused by dengue virus strains 1, 2, 3 or 4, with a person being infected multiple times over the course of their life, Duszynski told ABC News, so a vaccine may be able to help ...
Epidemic dengue has become more common since the 1980s. 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 ...
The CDC warned about a higher-than-expected number of dengue cases among US travelers — 745 cases through June 24.