Résultats de la recherche - 11 results
Impact of Age, Season, and Flowing vs. Stagnant Water Habitat on Avian Influenza Prevalence in Mute Swan (Cygnus olor) in Belgium.
factors. Using a nucleoprotein (NP)-based ELISA, a global antibody prevalence of 35% has been found and was characterized by two peaks in the winter and the summer that might be indicative of a greater LPAI ...
Follow-up of the Schmallenberg Virus Seroprevalence in Belgian Cattle.
affecting primarily ruminants. Based on the results of two cross-sectional studies conducted in the Belgian ruminant population during winter 2011-2012, we concluded that at the end of 2011, almost the whole ...
Distinction between persistent and transient infection in a bovine viral diarrhoea (BVD) control programme: appropriate interpretation of real-time RT-PCR and antigen-ELISA test results.
currently implemented on a voluntary basis at herd level and mainly relies on detection and culling of persistently infected (PI) animals. The present field study was conducted during the winter of 2010/2011 ...
Large-scale cross-sectional serological survey of Schmallenberg virus in Belgian cattle at the end of the first vector season.
conclusion that the Schmallenberg virus was widespread in Belgium during winter 2011. Seroprevalence was shown to be statistically associated to the animal’s age (P < 0.0001): with 64.9% (95% CI: ...
Assessment of the long-term effect of vaccination on transmission of infectious bovine rhinotracheitis virus in cattle herds hyperimmunized with glycoprotein E-deleted marker vaccine.
significantly decreased over time for the HIG s, compared with the NIG. Seasonal changes in the risk of gE seroconversion were detected, with a higher risk during winter periods, compared with grazing periods. No ...
The presence of bluetongue virus serotype 8 RNA in Belgian cattle since 2008.
Reaction RNA, Viral Spleen Time Factors Viral Vaccines Abstract: After a short winter break, bluetongue virus serotype 8 was responsible in 2007 for a large-scale epidemic among ruminant populations in ...
The impact of naturally-occurring, trans-placental bluetongue virus serotype-8 infection on reproductive performance in sheep.
experimentally-infected sheep. Trans-placental transmission is potentially important in the ‘over-wintering’ of this virus and its subsequent impact on reproductive performance. This epidemiological study was carried out ...
Establishing the spread of bluetongue virus at the end of the 2006 epidemic in Belgium.
fitted in a Bayesian framework. Herd seroprevalence was estimated using a logistic regression model. To study the linear correlation between the BT winter screening data and the case-herds data, the linear ...
Contaminants in organically and conventionally produced winter wheat (Triticum aestivum) in Belgium.
Pesticide residues Triticum Abstract: A database has been compiled with the levels of important contaminants (mycotoxins, heavy metals and pesticides) measured from 2002 to 2005 in winter wheat (Triticum ...
The occurrence of encephalomyocarditis virus (EMCV) in European pigs from 1990 to 2001.
(110), Greece (15) and Cyprus (6). The outbreaks appeared to be clustered in ‘endemic areas’ with an increase in outbreaks during the autumn and winter months. The within-herd seroprevalence measured in ...