猪圆环病毒2型和猪繁殖与呼吸综合征病毒混合感染的流行病学调查  

Investigation on Epidemiology of Co-infection of Porcine Reproductive and Respiratory Syndrome Virus and Porcine Circovirus Type 2

作　　者：王小敏[1] 何孔旺[1] 张文文[1,2] 周忠涛[1,2] 茅爱华[1] 俞正玉[1] 温立斌[1] 倪艳秀[1] 张雪寒[1] 郭容利[1] 吕立新[1] 李彬[1] 周俊明[1] 

机构地区：[1]江苏省农业科学院兽医研究所,农业部兽用生物制品工程技术重点实验室,国家兽用生物制品工程技术研究中心,江苏南京210014 [2]南京农业大学动物医学院,江苏南京210095

出　　处：《华北农学报》2012年第B12期390-394,共5页Acta Agriculturae Boreali-Sinica

基　　金：江苏省农业科技创新基金(cx(10)424);国家公益性(农业)行业专项(200803020)

摘　　要：研究2009-2010年我国部分地区猪圆环病毒2型(PCV2)和猪繁殖与呼吸综合征病毒(PRRSV)混合感染的情况。采用PCR和RT-PCR方法对采集自我国安徽、江苏、山东、浙江等7省的227份组织和血清样品进行PCV2和PRRSV检测。PCV2a感染率为15.9%,PCV2b感染率为44.5%,PRRSV感染率为45.8%,其中17份样品表现为PCV2a和PRRSV的混合感染,50份样品表现为PCV2b和PRRSV的混合感染,10份样品表现为PCV2a,PCV2b和PRRSV的混合感染,分别占样品总数的7.5%,22.0%和4.4%。猪群中PCV2和PRRSV的感染比较普遍,混合感染率也较高,加重了疫病防控的难度。The research was to study the epidemiology of co-infection of porcine circovirus type 2 and Porcine reproductive and respiratory syndrome virus in parts of China during 2009-2010.A total of 227 tissue and serum samples of diseased pigs obtained from Jiangsu,Anhui,Shanghai,Shandong,Zhejiang,Fujian and Jiangxi provinces of China during 2009-2010 were detected for PCV2 and PRRSV by PCR or RT-PCR.The results showed that the positive rate of PCV2a,PCV2b and PRRSV were 15.9%,44.5% and 45.8% respectively.17 samples were positive for PCV2a and PRRSV,50 samples were positive for PCV2b and PRRSV,10 samples were positive for PCV2a,PCV2b and PRRSV,and the corresponding co-infection rate were 7.5%,22.0% and 4.4% respectively.All these results indicated that the PCV2 and PRRSV infection were widespread and co-infection of PCV2 and PRRSV was prevalent in parts of China during 2009-2010.The high co-infection rate also increased the difficulty of prevention and controlling diseases of swine.

关 键 词：猪繁殖与呼吸综合征病毒 猪圆环病毒2型 共感染 

分 类 号：S432.4[农业科学—植物病理学]