Estimates of the prevalence of transmissible spongiform encephalopathies in sheep and goats in France in 2002
| Autor: | J. L. Vinard, J. Y. Madec, Anna Bencsik, T. Baron, Eric Morignat, Christian Ducrot, Didier Calavas, Cazeau G, A.-G Biacabe |
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| Přispěvatelé: | Agence Française de Sécurité Sanitaire des Aliments (AFSSA), Unité de Recherche d'Épidémiologie Animale (UR EpiA), Institut National de la Recherche Agronomique (INRA) |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Male
Veterinary medicine animal diseases [SDV]Life Sciences [q-bio] Sheep Diseases SCRAPIE DIAGNOSIS Sensitivity and Specificity Prion Diseases Diagnosis Differential Predictive Value of Tests SURVEILLANCE Prevalence Animals Medicine Sampling scheme Goat Diseases Sheep General Veterinary business.industry Goats Sampling (statistics) Diagnostic test General Medicine Models Theoretical Female France business Sentinel Surveillance Abattoirs |
| Zdroj: | Veterinary Record Veterinary Record, BMJ Publishing Group, 2006, 158 (20), pp.683-687 |
| ISSN: | 0042-4900 |
| Popis: | An active surveillance programme for transmissible spongiform encephalopathies (TSES) in sheep and goats was implemented in France in 2002 at abattoirs and rendering plants. The analysis of the results of this programme highlighted three biases: a potentially non-random sampling scheme in both rendering plants and abattoirs, a heterogeneous geographical sampling ratio, and the use of two diagnostic tests of unequal sensitivity. Simulations were run to estimate the prevalence of TSES by taking these biases into account. A comparison of the prevalence of TSES calculated from the raw data with the simulation results showed that the effects of non-random sampling were minor in comparison with the effects of the heterogeneous geographical sampling ratio and the use of two diagnostic tests. |
| Databáze: | OpenAIRE |
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