Risk-based surveillance for bluetongue virus in cattle on the south coast of England in 2017 and 2018
| Autor: | John Flannery, Elizabeth White, Simon Gubbins, Christina Papadopoulou, Carrie Batten, Rachelle Avigad, Katherine Grace, Steve Collins, Simon Carpenter, Tobias Floyd |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
medicine.medical_specialty Veterinary medicine 040301 veterinary sciences Cattle Diseases Real-Time Polymerase Chain Reaction 010603 evolutionary biology 01 natural sciences Bluetongue Risk Assessment Virus 0403 veterinary science surveys Epidemiology medicine Animals Original Research General Veterinary Animal health Electronic Pages Outbreak 04 agricultural and veterinary sciences General Medicine Geography Cross-Sectional Studies England cattle ruminants Vector (epidemiology) epidemiology Viral disease Sentinel Surveillance Bluetongue virus |
| Zdroj: | The Veterinary Record |
| ISSN: | 2042-7670 |
| Popis: | BackgroundBluetongue (BT) is a viral disease of ruminants and camelids which can have a significant impact on animal health and welfare and cause severe economic loss. The UK has been officially free of bluetongue virus (BTV) since 2011. In 2015, BTV-8 re-emerged in France and since then BTV has been spreading throughout Europe. In response to this outbreak, risk-based active surveillance was carried out at the end of the vector seasons in 2017 and 2018 to assess the risk of incursion of BTV into Great Britain.MethodAtmospheric dispersion modelling identified counties on the south coast of England at higher risk of an incursion. Blood samples were collected from cattle in five counties based on a sample size designed to detect at least one positive if the prevalence was 5 per cent or greater, with 95 per cent confidence.ResultsNo virus was detected in the 478 samples collected from 32 farms at the end of the 2017 vector season or in the 646 samples collected from 43 farms at the end of the 2018 vector season, when tested by RT-qPCR.ConclusionThe negative results from this risk-based survey provided evidence to support the continuation of the UK’s official BTV-free status. |
| Databáze: | OpenAIRE |
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