Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"bluetongue"”.
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Development of plant-produced Bluetongue virus vaccines
Bluetongue is a disease of domestic and wild ruminants caused by Bluetongue virus (BTV). It has caused several serious outbreaks, the most recent occurring in Northern Europe in 2006 during which high mortality rates of livestock were reported. The only vaccines currently approved and commercially …
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Reassortment of bluetongue virus vaccine serotypes in cattle
Bluetongue (BT) is a non-contagious viral disease of domestic and wild ruminants. Bluetongue virus (BTV), an Orbivirus that belongs to the family Reoviridae, is the causing agent of the disease. The virus consists of a ten segmented double stranded (ds) RNA genome and currently 27 serotypes have …
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The molecular epidemiology of bluetongue virus in northern Colorado
… years of study, the overwintering mechanism of bluetongue virus (BTV) has never been elucidated to a scientifically satisfactory degree. This is an important area of research because current trade agreements between the United States and its partners allow for the regionalization of disease …
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Investigation of particulate Bluetongue virus vaccines made in plants
Bluetongue virus (BTV) infects ruminants but predominantly causes severe and often fatal haemorrhagic fever, known as Bluetongue (BT) disease, in sheep. Increasing global temperatures have contributed to the global dissemination of BTV. This is a result of the Culicoides insect vectors which …
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Vertical transmission in the culicoid vector as a possible mechanism for bluetongue virus transeasonality
Bluetongue virus (BTV) is transmitted between vertebrate hosts by arthropod vectors in the genus Culicoides. In tropical and sub-tropical climates the virus is maintained in a continual cycle between the culicoid vector and the vertebrate host; however, bluetongue disease is also enzootic in …
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Development of a single real-time RT-PCR method for the group-specific identification of African horsesickness virus and bluetongue virus
… consequences that can result from outbreaks. Bluetongue, an arthropod-transmitted disease of wild and domestic ruminants, is caused by the bluetongue virus, which is the prototype species of the genus Orbivirus. Bluetongue is also a notifiable disease because it can spread very rapidly in …
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Modeling Temperature Effects on Vector-Borne Disease Dynamics
… caused by a virus that infects humans and bluetongue disease, caused by a virus that infects ruminants. First, I collect data on mosquito traits' response to temperature changes, this includes adult traits as well as juvenile traits. Next, I use these traits to model mosquito density, and …
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A study of biting midge populations and an assessment of Bluetongue virus presence in southern Ontario, with a visual dichotomous key to the North American genera of Ceratopogonidae
… present, and determining if they were carrying Bluetongue virus (BTV). Fourteen livestock farms were sampled to assess presence of ceratopogonid vectors. Captured Culicoides specimens were subjected to RT-qPCR analysis to test for BTV. The North American vector for BTV (Culicoides sonorensis) …
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Antibiotic resistant and xenobiotic degrading bacteria that shape the microbiota of the vectors Aedes aegypti & Culicoides sonorensis
… spread by these vectors, such as Dengue and Bluetongue virus, are the causative agents of diseases with significant impact on public health and the livestock industry. Primary vector control methods involve the use of insecticides such as synthetic pyrethroids like permethrin; however, the …
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INVESTIGAÇÃO SOROEPIDEMIOLÓGICA DO VÍRUS DA LÍNGUA AZUL (BTV) EM REBANHOS CAPRINOS DO ESTADO DA PARAÍBA
… deserve to be highlighted, by example the Bluetongue Virus (BTV). Due to the scarcity of data demonstrating this microorganism seroprevalence in goat herds in Paraiba territory, this study proposes to carry out an epidemiological analysis in order to establish a BTV seroprevalence in …
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A spatial risk assessment of hemorrhagic disease in cattle in Illinois from 2005 to 2011
Diseases caused by both the bluetongue (BT) and epizootic hemorrhagic disease (EHD) viruses, referred to collectively as hemorrhagic disease (HD), infect both domestic and wild ruminants in the United States. The viruses are transmitted via biting midges, and EHDV in particular causes severe …
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Reagents and Tools to Identify Epizootic Hemorrhagic Disease Virus-2
… EHDV. EHDV is an Orbivirus, which also includes Bluetongue Virus and African Horse Sickness, which are all transmitted through arthropod vectors. EHDV causes significant morbidity and mortality in white-tailed deer, but has recently been found to infect cattle. EHDV recently caused significant …
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The characterisation of aspects related to the single stranded RNA binding ability of African horsesickness virus nonstructural protein NS2
… NS2 has a lower binding affinity for ssRNA than bluetongue virus (BTV) NS2. There thus seems to be a correlation between the α-helix content of different NS2 proteins and their ssRNA affinity. In order to determine if the difference between the ability of AHSV NS2 and BTV NS2 to bind …
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Characterizing the effect of mutation recombination and reassortment on the genetic diversity of African horse sickness virus genomes
… appears to be less frequent than in bluetongue virus (BTV). Widespread reassortment events were detected, including between vaccine strains and wild type viruses. Similar to BTV, all ten segments were predicted to evolve under strong purifying selection with selected sites under …
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Characterisation of promoter sequences in a Capripoxvirus genome
… expressed in LSDV, namely the cloned VPS-gene of bluetongue virus serotype 4, was prepared and its nucleotide sequence determined. Homopolymer sequences present at the terminal ends of the gene as a result of the original cloning strategy, are known to interfere with expression and were removed by …
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Investigation into possible factors affecting the recruitment of Rocky Mountain elk on the Valles Caldera national preserve
… (BVDV), infectious bovine rhinotracheitis (IBR), bluetongue (BT), epizootic hemorrhagic disease (EHD), parainfluenza-3 (PI-3) and 5 serovars of Leptospirosis. Exposure rates were highest for PI-3 (34.5%) and IBR (10.1%) for total samples. Exposure for BVDV was found in 2.5% of the total samples. …