PED以及饲料在病毒传播过程中的作用 - Scott Dee.pdf

PED and the role of feed in the regional spread of the virus PED以及饲料在病毒传播过程中的作用 Scott Dee PAR and SDSU Important publications 重要文献 • Dee S, Clement T, Schelkopf A, Nerem J, Knudsen D, Hennings J and Nelson E. An evaluation of contaminated complete feed as a vehicle for porcine epidemic diarrhea virus infection of naïve pigs following consumption via natural feeding behavior: Proof of concept. BMC Vet Res 2014,10:176. • Dee SA, Neill C, Clement T, Singrey A, Christopher-Hennings J and Nelson E. An evaluation of PEDV survival in individual feed ingredients in the presence or absence of a liquid antimicrobial. Porcine Health Management 2015,1:9. • Dee SA, Neill C, Singrey A, Clement T, Cochrane R, Jones C, Patterson G, Spronk G, Christopher-Hennings, J and Nelson E. Modeling the transboundary risk of feed ingredients contaminated with porcine epidemic diarrhea virus. BMC Vet Res 2016, 12:51. 2013: PEDV Hits the US 2013：PED在美国爆发 History 历史  Pattern of sow farm infections 母猪场感染模式  May-December 2013，2013年5月到12月  2 PS farms infected 两个派普斯通猪场感染  January 2014 2014年1月  3 sow farms infected within a 1 week period 1周内3个母猪场感染  Farm biosecurity very high (filtered) 猪场生物安全级别很高（过滤）  No animal by-products in PS sow herds 派普斯通母猪饲料中无动物产品  Epidemiology 流行病学  Clinical signs of PEDV began 1-2 days following feed delivery consumption 未 了后1-2天内PEDV临床症状开始  Bin location corresponded directly to the onset of clinical signs 症状开始与料 罐位置相对应  Role of feed was challenging 饲料的作用具挑战性  No literature or references to learn from. 无文献及参考  Lack of sampling methods. 缺乏采样方法  Lack of infectivity assays. 缺乏感染力分析 This document and any files transmitted with it are for the sole use of the in