美国一组母猪群中2013 - 2014年与2009 - 2012年猪繁殖与呼吸综合征病毒年度疫情的比较。
Comparison between the 2013-2014 and 2009-2012 annual porcine reproductive and respiratory syndrome virus epidemics in a cohort of sow herds in the United States.
作者信息
Tousignant Steven J P, Perez Andres, Morrison Robert
机构信息
Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, Saint Paul, Minnesota 55108, USA.
出版信息
Can Vet J. 2015 Oct;56(10):1087-9.
Abstract
The purpose of this study was to describe the 2013/2014 porcine reproductive and respiratory syndrome virus (PRRSV) epidemic in the United States and compare it with the previous 4 y of data from 2009 to 2012. A total of 371 herds participated in the study, representing nearly 1.2 million sows in 15 States. There were significantly fewer PRRSV cases during this study period and the onset of the annual epidemic was delayed approximately 3 wk. Cluster analysis revealed a pattern similar to previous years. The roles of spurious observations, increased awareness of PRRSV epidemics, and porcine epidemic diarrhea virus detection in the United States swine herd are considered.
摘要
本研究的目的是描述2013/2014年美国猪繁殖与呼吸综合征病毒（PRRSV）疫情，并将其与2009年至2012年之前4年的数据进行比较。共有371个猪群参与了该研究，代表了15个州近120万头母猪。在本研究期间，PRRSV病例显著减少，年度疫情的开始推迟了约3周。聚类分析揭示了与前几年相似的模式。文中考虑了伪观测值、对PRRSV疫情认识的提高以及美国猪群中猪流行性腹泻病毒检测的作用。
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