A stochastic evaluation of the validity of an animal-health survey in Uruguay
This paper introduces spreadsheet simulation models to evaluate the validity of national or regional disease surveys aimed at identifying infection in populations of farm animals. The process of evaluation includes specification or calculation of cluster-level diagnostic test sensitivity (the propor...
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| Autores principales: | , , , , , , , , |
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| Formato: | Libro Capitulo de libro |
| Lenguaje: | Inglés |
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Nova Science Publishers
2010
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/150734 |
| Aporte de: |
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I19-R120-10915-150734 |
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dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Veterinarias Estadísticas sanitarias Animales de granja Uruguay |
| spellingShingle |
Ciencias Veterinarias Estadísticas sanitarias Animales de granja Uruguay Suzuki, Kuniaki Galosi, Cecilia Mónica Echeverría, María Gabriela Satragno, D. Alzugaray, F. Torres, E. de Guarino, H. Freyre, A. Wager, Felix C. A stochastic evaluation of the validity of an animal-health survey in Uruguay |
| topic_facet |
Ciencias Veterinarias Estadísticas sanitarias Animales de granja Uruguay |
| description |
This paper introduces spreadsheet simulation models to evaluate the validity of national or regional disease surveys aimed at identifying infection in populations of farm animals. The process of evaluation includes specification or calculation of cluster-level diagnostic test sensitivity (the proportion of animals with the disease which test positive) and specificity (the proportion of animals without the disease which test negative), which are obtained from two probability distributions of the number of positive tests at individual-level expected from infected and non-infected clusters, respectively. Probability distributions for the number of positive clusters expected in a situation of the herd prevalence are specified and used to define survey properties (the survey being considered a diagnostic system), and receiver operating characteristic curves (consisting of a plot of sensitivity and specificity pairs for different cut-off values) are drawn. The result of a survey implemented to determine the prevalence of infectious bovine rhinotracheitis in dairy cattle in Uruguay, South America was used to illustrate this approach. The models can be adapted to a wide range of survey designs in animal health and production. |
| format |
Libro Capitulo de libro |
| author |
Suzuki, Kuniaki Galosi, Cecilia Mónica Echeverría, María Gabriela Satragno, D. Alzugaray, F. Torres, E. de Guarino, H. Freyre, A. Wager, Felix C. |
| author_facet |
Suzuki, Kuniaki Galosi, Cecilia Mónica Echeverría, María Gabriela Satragno, D. Alzugaray, F. Torres, E. de Guarino, H. Freyre, A. Wager, Felix C. |
| author_sort |
Suzuki, Kuniaki |
| title |
A stochastic evaluation of the validity of an animal-health survey in Uruguay |
| title_short |
A stochastic evaluation of the validity of an animal-health survey in Uruguay |
| title_full |
A stochastic evaluation of the validity of an animal-health survey in Uruguay |
| title_fullStr |
A stochastic evaluation of the validity of an animal-health survey in Uruguay |
| title_full_unstemmed |
A stochastic evaluation of the validity of an animal-health survey in Uruguay |
| title_sort |
stochastic evaluation of the validity of an animal-health survey in uruguay |
| publisher |
Nova Science Publishers |
| publishDate |
2010 |
| url |
http://sedici.unlp.edu.ar/handle/10915/150734 |
| work_keys_str_mv |
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Repositorios |
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