Bluetongue virus
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Bluetongue virus |
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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
- Bluetongue virus. In: ICTVdB - The Universal Virus Database, version 4. Retrieved December 9, 2007.
- Friedrich Loeffler Institute : Bluetongue Disease. As of December 13, 2018 [1] .
- P. Roy: Molecular Dissection of Bluetongue Virus. In: TC Mettenleiter u. F. Sobrino (Ed.): Animal Viruses Molecular Biology. Caister Academic Press UK, Chapter 7.
Individual evidence
- ↑ ICTV Master Species List 2018b v1 MSL # 34, Feb. 2019
- ↑ a b c d e ICTV: Bluetongue virus , EC 51, Berlin, Germany, July 2019; Email ratification March 2020 (MSL # 35)