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See detailBluetongue Virus RNA Detection by Real-Time RT-PCR in Post-Vaccination Samples from Cattle
De Leeuw, Ilse; Garigliany, Mutien-Marie ULg; Bertels, Guido et al

Conference (2013, October 02)

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See detailBluetongue Virus RNA Detection by Real-Time RT-PCR in Post-Vaccination Samples from Cattle.
De Leeuw, I.; Garigliany, Mutien-Marie ULg; Bertels, G. et al

in Transboundary and Emerging Diseases (2013)

Bluetongue virus serotype 8 (BTV-8) was responsible for a large outbreak among European ruminant populations in 2006-2009. In spring 2008, a massive vaccination campaign was undertaken, leading to the ... [more ▼]

Bluetongue virus serotype 8 (BTV-8) was responsible for a large outbreak among European ruminant populations in 2006-2009. In spring 2008, a massive vaccination campaign was undertaken, leading to the progressive disappearance of the virus. During surveillance programmes in Western Europe in 2010-2011, a low but significant number of animals were found weakly positive using BTV-specific real-time RT-PCR, raising questions about a possible low level of virus circulation. An interference of the BTV-8 inactivated vaccine on the result of the real-time RT-PCR was also hypothesized. Several studies specifically addressed the potential association between a recent vaccination and BTV-8 RNA detection in the blood of sheep. Results were contradictory and cattles were not investigated. To enlighten this point, a large study was performed to determine the risks of detection of bluetongue vaccine-associated RNA in the blood and spleen of cattle using real-time RT-PCR. Overall, the results presented clearly demonstrate that vaccine viral RNA can reach the blood circulation in sufficient amounts to be detected by real-time RT-PCR in cattle. This BTV-8 vaccine RNA carriage appears as short lasting. [less ▲]

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See detailRhinitis/Bronchopneumonia syndrome in Irish Wolfhounds.
Clercx, Cécile ULg; Reichler, I.; Peeters, Dominique ULg et al

in Journal of Veterinary Internal Medicine (2003), 17(6), 843-9

This study describes the clinical, immunologic, genetic, and pathologic features of Irish Wolfhounds with rhinitis/bronchopneumonia syndrome. The dogs examined were from Belgium, The Netherlands, UK ... [more ▼]

This study describes the clinical, immunologic, genetic, and pathologic features of Irish Wolfhounds with rhinitis/bronchopneumonia syndrome. The dogs examined were from Belgium, The Netherlands, UK, Canada, Germany, and Switzerland. Signs included transient to persistent mucoid or mucopurulent rhinorrhea, cough, and respiratory dyspnea. Radiographic, rhinoscopic, and bronchoscopic findings were variable. Analysis of ciliary ultrastructure was performed in 5 affected dogs, but no characteristic primary ciliary defects (primary ciliary dyskinesia) were detected. Serum and bronchoalveolar lavage fluid (BALF) concentrations of IgA, IgG, and IgM were determined in some affected dogs and clinically normal Irish Wolfhounds. Serum IgA concentration was below the reference range in 5 of 8 affected dogs tested, whereas BALF IgA concentration was above the normal range in 2 affected adult dogs. The CD4 to CD8 lymphocyte subset ratio (CD4:CD8) in peripheral blood was tested in 3 affected dogs and was within the normal range. BALF CD4:CD8 was tested in 1 affected dog and was higher than the normal range. Decreased neutrophil phagocytosis was observed in 1 of the 4 dogs tested. Analysis of pedigrees of the Belgian, Canadian, German, and Swiss dogs revealed common ancestry, suggesting a heritable syndrome. [less ▲]

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