volume provides an excellent, easy-to-read introduction to this interesting and important field of research. Bluetongue and related viruses cause disease in cattle, sheep, and some wild animal species. These agents can have significant economic impact, both because of actual livestock morbidity and mortality and because of restrictions of exports of animals and animal products. Another orbiviru...

Following the bluetongue (BT) outbreaks in Tunisia from 1999 to 2002, BTV (bluetongue virus) serotype 2 was isolated; however, no entomological investigation was performed. In the study presented here, we assessed the Culicoides species populations (particularly C. imicola) in proximity to the BT outbreaks locations, both as a retrospective analysis and to update the list of Culicoides species ...

  Bluetongue is an infectious disease that primarily affects sheep. But due to serious socioeconomic consequence of it outbreaks on the international trade it has been included in the OIE notifiable diseases (list A). During 2007-8, total number of 130 blood samples gathered from suspected sheep to bluetongue disease in seropositive region including Khuzestan, Kurdistan, Fars, Ilam and Qum prov...

Culicoides spp. in the Lowveld of the northern Transvaal, Republic of South Africa, were fed bluetongue virus serotypes 3 and 6 and African horsesickness virus serotype 1 through latex and chicken skin membranes. After an incubation period of 10 days at 25-27 degrees C, the infection rate of C. imicola for bluetongue virus serotypes 3 and 6 was established at 31% and 24% respectively. No Africa...

The genus Orbivirus consists of 12 defined serological groups of arthropod-borne viruses. The taxonomic group was formed following the demonstration that the genome of bluetongue virus consisted of 10 segments of double-stranded RNA. Viruses with morphology and physico-chemical proper­ ties similar to those of bluetongue virus were included in the genus. As viruses representative of each serogr...

bluetongue is an acute and subacute viral diseases of domestic and wild ruminants.this research was conducted to assess the disease status using serological diagnostic methods and virus isolation were performed. during the period 2003-2006, from sheep farms of 9 provinces including markazi, ardabil, yazd, qom, east azarbaijan, west azarbaijan, qazvin, isfahan and golestan, four handred thirty t...

during 2009-10, real time rt-pcr and conventional rt-pcr techniques used for detecting btvs rna in 310 blood samples. for real time and gel based rt-pcr segment-1 and segment-10 selected as conserve genes to search any btv strains. using these methods, 58 (%18.7) and 14 (%4.5) positive samples were detected among the clinically suspected sheep. sensitivity of both molecular techniques evalua...