bluetongue


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bluetongue

(blo͞o′tŭng′)
n.
A viral disease of sheep and cattle that is transmitted by biting insects and is characterized by fever, the formation of oral lesions, and swelling and cyanosis of the lips and tongue.

bluetongue

an infectious, non-contagious disease of sheep and occasionally cattle, transmitted by Culicoides spp. Caused by an Orbivirus with at least 24 serotypes worldwide. Cattle are the reservoir and amplification hosts. Severe disease is restricted to fine wool and mutton breeds of sheep. Infection, but not disease, is endemic in tropical and subtropical regions. Disease occurs in epidemic and incursive areas when climatic conditions allow the expansion of vector occurrence. Currently, this is occurring in southern Europe associated with global warming. Manifest with fever, catarrhal stomatitis, rhinitis, enteritis and lameness due to a coronitis and myositis. High case fatality can occur in sheep. Congenital infections with wild or vaccine virus may result in defects in the nervous system, the type and severity depending on the stage of gestation.

bluetongue virus (BTV)
a member of the family Reoviridae, genus Orbivirus. Causes bluetongue in sheep and other ruminants. Within the BTV serogroup there at least 24 serotypes of BTV and considerable genetic variability
References in periodicals archive ?
Culicoides and the global epidemiology of bluetongue virus infection.
A NEW threat emerged for Britain's farmers last night as bluetongue disease - spread by midges - joined foot and mouth as a menace to their livestock.
In the United States, bluetongue has a greater economic impact on the cattle industry--which is much larger than the sheep industry--even though infected cattle don't become noticeably ill.
Two million additional doses of the Bluetongue serotype 8 (BTV- 8) vaccine have been delivered.
This will allow farmers to protect their own livestock against the devastating bluetongue disease.
Although the bluetongue vaccination programme will be voluntary, I strongly encourage farmers to get their cattle protected against this terrible disease once the vaccines finally become available," said Ms Lynne, the Lib Dem's European agriculture spokeswoman.
All imports of susceptible animals from restricted areas in EU member states affected by Bluetongue are currently banned.
The Federal Veterinary Office announced on October 28 that six of 19 animals in a herd north of the Rhine had tested positive for bluetongue.
Dr Reynolds said: "Obviously, we must face the very real risk that bluetongue could already be actively circulating in this country.
Welsh environment minister John Griffiths yesterday confirmed the restrictions, which have been in place since the 2007 bluetongue outbreak, will end on July 5.
BLUETONGUE restrictions on the export of sheep and cattle from Great Britain are to be lifted next month, Welsh Environment Minister John Griffiths has announced.
Rosselkhoznadzor - The Federal Service for Veterinary and Phytosanitary Surveillance -- said: "Due to improvement of the bluetongue epizootic situation in the territory of the Republic of Bulgaria, Instruction No.