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What is a flavivirus?
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The origin of these viruses appears to be at least 9400 to 14,000 years ago. The Old World and New World dengue strains diverged between 150 and 450 years ago. The European and Far Eastern tick-borne encephalitis strains diverged about 1087 (1610–649) years ago.
- Flavivirus
- Flaviviridae
From Wikipedia, the free encyclopedia. Flaviviridae is a family of enveloped positive-strand RNA viruses which mainly infect mammals and birds. [1] . They are primarily spread through arthropod vectors (mainly ticks and mosquitoes ). [2] .
- Flasuviricetes
- Orthornavirae
- Flaviviridae
- Kitrinoviricota
Jun 25, 2021 · YFV causes yellow fever, an infectious disease also named “Blood Vomit”. YFV is transmitted by a commonly known yellow fever mosquito, Aedes aegypti. Aedes aegypti is a native African mosquito and, not coincidently, YF originates in Africa. YFV is transmitted through an urban cycle and wild species cycle.
- Rong Zhao, Meiyue Wang, Jing Cao, Jing Shen, Xin Zhou, Deping Wang, Jimin Cao
- 10.3390/life11070615
- 2021
- Life (Basel). 2021 Jul; 11(7): 615.
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 name of the family is derived from the Latin arenosus, meaning “sandy,” which describes the grainy appearance of arenavirus ribosomes ( protein -synthesizing particles). Arenaviruses have spherical, enveloped virions (virus particles) that are 110–130 nm (1 nm = 10 −9 metre) in diameter.
- The Editors of Encyclopaedia Britannica
Apr 30, 2017 · Evaluations of phylogenetic divergence times indicate the origins of the flaviviruses go back around 100,000 years to a common ancestor with the split between mosquito- and tick-borne flaviviruses around 40,000 years ago [ 1 ].
Jul 15, 1997 · Our phylogenetic study revealed for the first time that from the putative ancestor two branches, non-vector and vector-borne virus clusters, evolved and from the latter cluster emerged tick-borne and mosquito-borne virus clusters.