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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]
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]
Aedes aegypti (UK pronunciation: / ˈ iː d iː z /; US pronunciation: / ˈ 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.
Dengue fever is caused by infection through viruses of the family Flaviviridae. The illness is most commonly transmitted by Aedes aegypti mosquitoes in tropical and subtropical regions. [54] Dengue virus has four different serotypes, each of which are antigenically related but have limited cross-immunity to reinfection. [55]
PHOTO: The Aedes mosquito is a known vector for several viruses, including West Nile virus, yellow fever virus, dengue virus, chikungunya virus, and Zika virus. (NurPhoto via Getty Images, FILE)
The virus seems to have no detrimental effect on the mosquito, which remains infected for life. Aedes aegypti prefers to lay its eggs in artificial water containers, to live in close proximity to humans, and to feed on people rather than other vertebrates. [20] Dengue can also be transmitted via infected blood products and through organ donation.
The more concerning type of mosquito is actually the most common, says Shepherd. Mosquitoes belonging to the Aedes family cause most of the world’s malaria, dengue, yellow fever, West Nile, and ...
An Orange County Mosquito and Vector Control District worker begins the screening process for the presence of diseases like West Nile virus, Zika virus, Dengue fever or yellow fever at the agency ...