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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 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.
How does dengue spread and why is it on the rise? Dengue is typically spread through infected female Aedes aegypti (Egyptian tiger) mosquitoes that thrive in stagnant water, passing from one ...
Dengue viruses are spread through bites from infected Aedes species mosquitoes, mostly found in tropical and subtropical regions of the world, according to the CDC. These mosquitoes are also ...
"While the virus remains rare in much of the U.S., small outbreaks emphasize the need for public awareness and preventive steps to curb further spread." Dengue viruses are spread through bites ...
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 ...
Aedes aegypti is considered more likely than another type of Aedes mosquito, Aedes albopictus, to spread viruses like dengue, according to the U.S. Centers for Disease Control and Prevention.
Invertebrates spread bacterial, viral and protozoan pathogens by two main mechanisms. Either via their bite, as in the case of malaria spread by mosquitoes, or via their faeces, as in the case of Chagas' Disease spread by Triatoma bugs or epidemic typhus spread by human body lice. Many invertebrates are responsible for transmitting diseases.