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  5. Experimental infection of pigs with two East European variants of Type 1 PRRSV

Experimental infection of pigs with two East European variants of Type 1 PRRSV

来源 :2013国际猪繁殖与呼吸综合征学术研讨会 | 被引量 : 0次 | 上传用户：XUANWU30128
【摘 要】
：
Porcine reproductive and respiratory syndrome viruses (PRRSV) have been divided into Type 1 (European) and Type 2 (North American) viruses.PRRSV are very diverse and Type 1 viruses have even been furt
【作 者】
：
C.K.Hjulsager L.E.Larsen P.M.H.Heegaard T.Stadejek A.B(o)tner J.Nielsen 
【机 构】
：
National Veterinary Institute, Technical University of Denmark, Denmark
【出 处】
：
2013国际猪繁殖与呼吸综合征学术研讨会
【发表日期】
：
2013年12期
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论文部分内容阅读
Porcine reproductive and respiratory syndrome viruses (PRRSV) have been divided into Type 1 (European) and Type 2 (North American) viruses.PRRSV are very diverse and Type 1 viruses have even been further divided into subtypes.While Type 1 viruses from Western Europe belong to subtype 1,viruses from Eastern Europe have been divided into at least 3 different subtypes based on the length of ORF7 and in addition,atypical Type 1 viruses do not readily group into the subtype groups.In experimental trials it has been shown that some of these viruses,e.g.strain Lena,are more virulent than the subtype 1 strains.
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