A model (BSurvE) for estimating the prevalence of bovine spongiform encephalopathy in a national herd.
Prev Vet Med
; 80(4): 330-43, 2007 Aug 16.
Article
en En
| MEDLINE
| ID: mdl-17507106
ABSTRACT
We developed the BSurvE spreadsheet model to estimate the true prevalence of bovine spongiform encephalopathy (BSE) in a national cattle population, and evaluate national BSE surveillance programs. BSurvE uses BSE surveillance data and demographic information about the national cattle population. The proportion of each cohort infected with BSE is found by equating the observed number of infected animals with the number expected, following a series of probability calculations and assuming a binomial distribution for the number of infected animals detected in each surveillance stream. BSurvE has been used in a series of international workshops, where analysis of national datasets demonstrated patterns of cohort infection that were consistent with infection-control activities within the country. The results also reflected the timing of known events that were high-risk for introduction of the infectious agent.
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Banco de datos:
MEDLINE
Asunto principal:
Encefalopatía Espongiforme Bovina
/
Modelos Biológicos
Tipo de estudio:
Prevalence_studies
/
Risk_factors_studies
Límite:
Animals
Idioma:
En
Año:
2007
Tipo del documento:
Article