Rift valley fever causes: Difference between revisions

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{{CMG}}{{AE}} {{AAH}}
{{CMG}}{{AE}} {{AAH}}
==Overview==
==Overview==
[[Rift valley fever|Rift valley fever]] is caused by the Rift Valley fever virus (RVFV). The virus is a single-stranded [[RNA|RNA]] virus belonging to the [[Bunyaviridae|Bunyaviridae]] family. The virus is contracted by humans via exposure to animals exhibiting symptoms of RVF or via [[Mosquito|mosquito]] bites. Farmers and herdsman may be exposed to body fluids of animals with [[Rift valley fever|Rift valley fever]], which is another source of infection for humans.
==Causes==
==Causes==
*RVF is caused by the Rift Valley fever virus or RVFV, which belongs to the [[Bunyaviridae|Bunyaviridae]] family.  
*RVF is caused by the Rift Valley fever virus or RVFV, which belongs to the [[Bunyaviridae|Bunyaviridae]] family.  

Latest revision as of 13:26, 17 July 2021

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Aakash Hans, MD[2]

Overview

Rift valley fever is caused by the Rift Valley fever virus (RVFV). The virus is a single-stranded RNA virus belonging to the Bunyaviridae family. The virus is contracted by humans via exposure to animals exhibiting symptoms of RVF or via mosquito bites. Farmers and herdsman may be exposed to body fluids of animals with Rift valley fever, which is another source of infection for humans.

Causes

  • RVF is caused by the Rift Valley fever virus or RVFV, which belongs to the Bunyaviridae family.
  • The genetic composition of the virus is a single-stranded RNA consisting of three segments (L, M and S) out of which L and M possess a negative charge while the S segment has both sense and antisense orientation.[1]
  • The virus’ RNA polymerase is coded by the L component which is responsible for replication and transcription of messenger RNA (mRNA) while glycoproteins and protein are encoded via the M segment. [2]
  • Nucleoproteins and non-structural proteins are coded by the S segment in its antisense and sense orientation respectively.

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References

  1. Giorgi C. et al. 1991. Sequences and coding strategies of the S RNAs of Toscana and Rift Valley fever viruses compared to those of Punta Toro, Sicilian sandfly fever, and Uukuniemi viruses. Virology 180:738–753
  2. Gerrard S. R. and Nichol S. T.. 2007. Synthesis, proteolytic processing and complex formation of N-terminally nested precursor proteins of the Rift Valley fever virus glycoproteins. Virology 357:124–133.
  3. 3.0 3.1 "Public Health Image Library (PHIL)".

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