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- The flaviviruses are small single-stranded RNA viruses that are typically transmitted by mosquito or tick vectors. These “arboviruses” are found around the world and account for a significant number of cases of human disease. The flaviviruses cause diseases ranging from mild or sub-clinical infections to lethal hemorrhagic fever or encephalitis.
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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.
Drug research. References. External links. 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.
Jun 25, 2021 · 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.
Taxonomy. Phylogenetic tree of Flaviviridae using the NS3 protein sequences. 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)
Nov 22, 2021 · Flaviviruses are positive sense single-stranded RNA viruses transmitted predominantly by arthropods and includes some of the most important human pathogens such as dengue (DENV1-4), yellow fever (YFV), West Nile (WNV) and Zika (ZIKV) viruses.
- Sophie Wilhelmina van Leur, Tiaan Heunis, Deeksha Munnur, Sumana Sanyal
- 10.1080/21505594.2021.1996059
- 2021
- Virulence. 2021; 12(1): 2814-2838.
flavivirus: introduction Most flaviviruses are arthropod-borne viruses which cause mild rash and fever or life-threatening hemorrhagic fever and encephalitis in infected individuals. These arboviruses, including dengue, yellow fever, Japanese encephalitis, and tick-borne encephalitis, constitute a major threat to the developing world where ...
The flavivirus family derives its name from one of the greatest plagues in history, yellow fever ("flavi"= yellow in Latin). The yellow fever epidemic started hundreds of years ago when the virus and its vector, a mosquito known as Aedes aegypti , were transported to the New World in the water casks of slave ships from West Africa.
