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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]
Arthropods are common vectors of disease.A vector is an organism which spreads disease-causing parasites or pathogens from one host to another. Invertebrates spread bacterial, viral and protozoan pathogens by two main mechanisms.
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.
The mosquito-borne virus has a long history in warm climates but is now also emerging in regions where it had been generally unheard of—such as in Europe and parts of the U.S.
Hendra virus infection HF Heart failure: HFA High-functioning autism: HFMD Hand, foot, and mouth disease: HFRS Hemorrhagic fever with renal syndrome: HI Hearing impaired: HiB disease Haemophilus influenzae type B disease: HIBM Hereditary inclusion body myopathy: HMSN Type III Hereditary motor and sensory polyneuropathy type III (see Dejerine ...
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 Flaviviridae are part of RNA virus supergroup II, which includes certain plant viruses and bacterial viruses. [2] The family has four genera: [1] [2] Genus Flavivirus, renamed Orthoflavivirus in 2023, (includes Dengue virus, Japanese encephalitis, Kyasanur Forest disease, Powassan virus, West Nile virus, Yellow fever virus, and Zika virus)
The characteristic symptoms of dengue are sudden-onset fever, headache (typically located behind the eyes), muscle and joint pains, and a rash. The alternative name for dengue, "breakbone fever", comes from the associated muscle and joint pains. [7] [19] The course of infection is divided into three phases: febrile, critical, and recovery. [18]