Performance of clinical signs to detect bluetongue virus serotype 8 outbreaks in cattle and sheep during the 2006-epidemic in The Netherlands
| Autor: | A. Backx, A.N. van der Spek, P.A. van Rijn, H.M. Ekker, Armin R.W. Elbers |
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| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Serotype
medicine.medical_specialty Pathology Cattle Diseases Biology classical swine Microbiology Bluetongue Sensitivity and Specificity Disease Outbreaks CVI - Divisie Virologie Tongue medicine Animals Oral mucosa Nose Paresis Netherlands General Veterinary Receiver operating characteristic General Medicine medicine.disease Dermatology medicine.anatomical_structure Population Surveillance Cattle Flock medicine.symptom Bluetongue virus CVI - Division Virology Torticollis |
| Zdroj: | Veterinary Microbiology, 129(1-2), 156-162 Veterinary Microbiology 129 (2008) 1-2 |
| ISSN: | 0378-1135 |
| Popis: | The performance of clinical signs as a diagnostic test for the detection of BTV-8 outbreaks during the 2006-epidemic in The Netherlands was evaluated by constructing and analysing receiver operating characteristic (ROC) curves. The area under the ROC curve of the BT-associated clinical signs in cattle was 0.77. An optimal efficient test (maximising both sensitivity and specificity) in cattle herds combined a sensitivity (Se) of 67% with a specificity (Sp) of 72%, comprising the following clinical signs: ulcerations and/or erosions of oral mucosa or erosions of lips/crusts in or around nostrils or oedema of the nose or hyperaemic/purple coloration of tongue, tongue protrusion or coronitis or apathy/tiredness or muscle necrosis, stiffness of limbs or loathing or refusal to move, prostration or torticollis or anoestrus. The area under the ROC curve of the BT-associated clinical signs in sheep was 0.81. The optimal efficient test in sheep flocks combined a Se of 76% with a Sp of 72%, comprising the following clinical signs: ulcerations of oral mucosa or serous nasal discharge or erosions/ulceration of tongue mucosa or hypersensitivity of the skin or muscle necrosis, stiffness of limbs or coronitis or grinding of teeth or salivation or weakness/paresis. |
| Databáze: | OpenAIRE |
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