【摘 要】
：
A unique strain of PCV2 was recently isolated at the Kansas State Veterinary Diagnostic Laboratory from a PCV2 vaccinated herd that was experiencing PCVAD.This novel PCV2 (nPCV2) isolate is only 94％ h
【机 构】
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1Kansas State Veterinary Diagnostic Laboratory, College of Veterinary Medicine, Kansas State Univers
【出 处】
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2013国际猪繁殖与呼吸综合征学术研讨会
论文部分内容阅读
A unique strain of PCV2 was recently isolated at the Kansas State Veterinary Diagnostic Laboratory from a PCV2 vaccinated herd that was experiencing PCVAD.This novel PCV2 (nPCV2) isolate is only 94％ homologous to both PCV2a and PCV2b and appears to be a novel strain of PCV2 that appears to be new to North America.It is very similar to PCV2 sequences found in banked serum of pigs suffering from PCVAD in China.The authors identifying this strain suggest that PCV2 in China appears to be evolving rapidly.In an attempt to characterize the pathogenicity of this novel PCV,virus laden serum was used to inoculate 10 cesareanderived colostrum-deprived (CDCD) 6 week old pigs.
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