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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]
The borrowed term changed to dengue in Spanish due to this word existing in Spanish with the meaning "fastidiousness" and this folk etymology referring to the dislike of movement by affected patients. [4] [84] Slaves in the West Indies having contracted dengue were said to have the posture and gait of a dandy, and the disease was known as ...
Dengue is transmitted by several species of mosquito within the genus Aedes, principally A. aegypti. The virus has four different types; infection with one type usually gives lifelong immunity to that type, but only short-term immunity to the others. Subsequent infection with a different type increases the risk of severe complications.
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 ...
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. [58] Dengue virus has four different serotypes, each of which are antigenically related but have limited cross-immunity to reinfection. [59]
The CDC warned about a higher-than-expected number of dengue cases among US travelers — 745 cases through June 24.
Significant outbreaks of dengue fever tend to occur every five or six months. The cyclical rise and fall in numbers of dengue cases is thought to be the result of seasonal cycles interacting with a short-lived cross-immunity [clarification needed] for all four strains in people who have had dengue. When the cross-immunity wears off the ...
A major outbreak in Argentina of dengue, a mosquito-borne illness that can be fatal, is on track to smash previous records, reflecting wider worry around South America where warmer and wetter ...