猪流行性腹泻病毒知识和来源于饲料污染.pdfVIP

Latest Knowledge on PEDv and Contaminated Feed as a Source 猪流行性腹泻病毒必威体育精装版知识和来源于饲料的污染 Timothy Snider, DVM, MPH College of Veterinary Medicine, Veterinary Pop Med Dept 蒂莫·斯奈德，兽医学博士，兽医公共卫生学院，兽医群体医学系 Outline 概要 • Associating PEDV transmission with swine feed 把 猪流行性腹泻病毒传播与猪饲料联系起来 • Evaluating biological risks of the feed supply chain 评价饲料供应链的生物风险 • Current Research 目前的研究 • Summary 总结 Industry perception and epidemiological findings 行业的看法和流行病学调查结果 ASSOCIATING PEDV FEED 猪流行性腹泻病毒与饲料的关联 Key Questions 重点问题 1. Trans-boundary transmission of PEDv 猪流行性腹泻病毒的跨境传输 How did it enter Western Hemisphere? 它是如何进入西 半球的？ 2. Domestic transmission of PEDv 国内传播 How does spread occur within a country? 如何在一个国 家内发生传播？ Transboundary Transmission: China Link 跨界传播：中国链接 Chinese USA isolates Feed ingredients suspected 99.5% similar 中国与美 as transboundary fomites 国分离毒株99.5％相似 疑似跨界源饲料原料污染 Huang et al, mBio, vol 4 Issue 5 Transboundary Transmission: Global Focus 跨界传播：全球聚焦 Transboundary Animal movement fomites 跨界动物运输和污染 Domestic Transmission Considerations 国内传播考虑方面 North American Cases Implicating Feed 北美牵连饲料的案例 January 2014 2014年1月– Canada 加拿大 – PEDv outbreak in Canadian province of Ontario 猪 流行性腹泻病毒疫情在加拿大安大略省爆发 This image cannot currently be displayed. – Spray Dried Porcine Blood Plasma Implicated 喷雾 干燥猪血浆有关 • Epidemiological Link 流行病学联系 • Canadian Food Inspection Agency Bioassay Positive 加 拿大食品检验局正生物测定阳性 North American Cases Implicating Feed 北美牵连饲料的案例 United States Clinical Cases 美国临床 病例 – PEDv in nurseries with no associated sow or finisher outbreaks. 猪流行性腹泻病毒在没有 相