Bluetongue virus

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Bluetongue virus
Bluetongue virus.gif

Bluetongue virus

Systematics
Classification : Viruses
Area : Riboviria
Empire : Orthornavirae
Phylum : Duplornaviricota
Class : Resentoviricetes
Order : Reovirals
Family : Reoviridae
Subfamily : Sedoreovirinae
Genre : Orbivirus
Type : Bluetongue virus
Taxonomic characteristics
Genome : dsRNA linear, segmented
Baltimore : Group 3
Symmetry : icosahedral
Cover : no
Scientific name
Bluetongue virus
Short name
BTV
Left

The bluetongue virus (Engl. Bluetongue Virus , short BTV ) is a viral species from the family of Reoviridae and Typusspezeis the genus Orbi virus . It causes bluetongue disease in ruminants .

BTV is an unenveloped virus particle with a diameter of 80 nm. The genome consists of linear double-stranded RNA , which is divided into ten segments of different sizes. 24 different serotypes with type-specific antigens are known from BTV . The virus, which was first detected in Germany in 2006, is type 8 (BTV-8).

The virus is transmitted through mosquitoes from the family of midges transferred from spring to autumn. A temperature of 25 to 30 ° C is ideal for the virus to multiply in the midges. In the infected animal, the BTV remains active for about 40-80 days, but can be detected for a longer period of time (sheep 100, cattle 240 days) using the polymerase chain reaction .

The bluetongue virus is relatively fragile - the infectiousness is lost in a slightly acidic environment.

swell

Individual evidence

  1. ICTV Master Species List 2018b v1 MSL # 34, Feb. 2019
  2. a b c d e ICTV: Bluetongue virus , EC 51, Berlin, Germany, July 2019; Email ratification March 2020 (MSL # 35)