2012
DOI: 10.1016/j.prevetmed.2011.12.015
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Assessment of the utility of routinely collected cattle census and disposal data for syndromic surveillance

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Cited by 36 publications
(37 citation statements)
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“…A comparable stratification by five current age bands and two breeds was used on a regional level by Perrin et al (2010Perrin et al ( , 2012. In the present study, the stratification by age, breed, sex, and holding size was found reasonably robust to model expected deaths per holding and also to estimate national herd-level mortality rates.…”
Section: Discussionmentioning
confidence: 51%
“…A comparable stratification by five current age bands and two breeds was used on a regional level by Perrin et al (2010Perrin et al ( , 2012. In the present study, the stratification by age, breed, sex, and holding size was found reasonably robust to model expected deaths per holding and also to estimate national herd-level mortality rates.…”
Section: Discussionmentioning
confidence: 51%
“…Por outro lado, em séries de longo prazo cujos dados de vigilân-cia coletados de forma passiva sejam obtidos longitudinal- O procedimento de imputação múltipla realizado para a variável idade, que originalmente apresentava 65,20% de preenchimento, completou os dados faltantes para a mesma, conforme apresentado no Quadro 1. mente com periodicidade definida, o diagnóstico de valores extremos poderia ser utilizado como mecanismo de alerta, constando em um sistema de vigilância como o limiar para a intervenção do SVO. Em tal situação, os níveis de normalidade do sistema poderiam ser customizados de acordo com níveis de frequência conhecidos, assim como os níveis má-ximos de tolerância de frequência da enfermidade, de maneira similar àquela utilizada pelos sistemas de vigilância sindrômica (Dórea et al 2011, Perrin et al 2012. A possibilidade de tal utilização foi verificada no presente estudo, no qual foi constatado que os dois valores extremos que fugiam do padrão esperado ocorreram devido a surtos de brucelose e de tuberculose e suas subsequentes ações de saneamento.…”
Section: Discussionunclassified
“…Using the week as timescale brings stability into the models, however it also includes certain information bias and some timeliness reduction (Perrin et al, 2012). The historical time reference used to build the models varied according to type of production system.…”
Section: Discussionmentioning
confidence: 99%
“…Moreover, certain health events that result in a mortality rate too small to be detected at farm level might produce a signal at regional level using an appropriate algorithm (Perrin et al, 2012).…”
Section: Introductionmentioning
confidence: 99%