General overview of PRRSV: A perspective from the United States
General overview of PRRSV: A perspective from the United States
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DOI：
10.1016/s0378-1135(96)01330-2
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发表时间：
1997-04-01
影响因子：
3.3
通讯作者：
Swenson, SL
中科院分区：
文献类型：
--
作者：
Zimmerman, JJ;Yoon, KJ;Swenson, SL
在报告发现四年后，猪繁殖与呼吸综合征病毒(PRRSV)继续挑战美国的养猪户、兽医和动物卫生研究人员。感染的流行率很高--合理的估计是60%到80%的牛群--但感染的临床影响在不同农场之间差别很大。在许多牛群中，感染并不明显，生产力似乎也没有受到影响。一些受感染的猪群报告说，小猪偶尔会爆发呼吸道疾病，或周期性地爆发生殖疾病，少数猪群经历了严重的慢性疾病问题，特别是在小猪身上。在这些猪群中，继发感染病毒或细菌的病原体，特别是霍乱沙门氏菌、猪链球菌或副猪嗜血杆菌通常与PRRSV感染同时发生，了解为什么一些猪群经历了毁灭性的临床疾病发作，而其他猪群没有明显的影响，这是解决猪生产者临床PRRS问题的核心。了解PRRSV的生态学和流行病学是今后防控PRRSV的关键。这篇文章的目的是回顾这些领域的最新发展，(C)1997年埃尔塞维尔科学公司。
Four years after the report of its discovery, porcine reproductive and respiratory syndrome virus (PRRSV) continues to challenge swine producers, veterinary practitioners, and animal health researchers in the United States. The prevalence of infection is high - 60% to 80% of herds is a reasonable estimate - but the clinical effects of infection vary widely among farms. In many herds, infection is unapparent and productivity seemingly unaffected. Some infected herds report occasional respiratory disease outbreaks in young pigs, or periodic outbreaks of reproductive disease, and a few herds experience severe, chronic disease problems, particularly in young pigs. In these herds, secondary infections with viral or bacterial pathogens, particularly Salmonella choleraesuis, Streptococcus suis, or Haemophilus parasuis typically occur concurrently with PRRSV infections, Understanding why some herds undergo devastating episodes of clinical disease and others show no apparent effects is central to solving the problem of clinical PRRS for swine producers. Understanding the ecology and epidemiology of PRRSV is the key to preventing and controlling PRRSV in the future. The objective of this article is to review recent developments in these areas, (C) 1997 Elsevier Science B.V.