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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 mosquito Aedes aegypti feeding on a human host. Dengue virus is most frequently transmitted by the bite of mosquitos in the Aedes genus, particularly A. aegypti. [32] They prefer to feed at dusk and dawn, [33] but they may bite and thus spread infection at any time of day. [34]
Aedes aegypti (UK: / ˈ iː d iː z /; US: / eɪ d z / or / ˈ eɪ d iː z / from Greek αηδής 'hateful' and / eɪ ˈ dʒ ɪ p t i / from Latin, meaning 'of Egypt'), the yellow fever mosquito, is a mosquito that can spread dengue fever, chikungunya, Zika fever, Mayaro and yellow fever viruses, and other disease agents.
The mosquito life cycle consists of four stages: egg, larva, pupa, and adult. Eggs are laid on the water surface; they hatch into motile larvae that feed on aquatic algae and organic material . These larvae are important food sources for many freshwater animals, such as dragonfly nymphs , many fish, and some birds.
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]
Controlling mosquitoes with mosquitoes. Mosquito control agencies in Southern California are desperate to tamp down an invasive mosquito — called Aedes aegypti — that has exploded in recent ...
Aedes mediovittatus is a competent vector of Dengue virus, exhibiting high rates of vertical transmission in laboratory studies. [1] It has been observed to feed mostly on humans and dogs but also on chickens, cats, rats, pigs, goats, sheep, cows, and horses. [1]
Aedes (also known as the tiger mosquito [1]) is a genus of mosquitoes originally found in tropical and subtropical zones, but now found on all continents except Antarctica. Some species have been spread by human activity : Aedes albopictus , a particularly invasive species , was spread to the Americas , including the United States , in the ...