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A Seamless Cloning Approach for Porcine Reproductive and Respiratory Syndrome Virus Expression Vector Construction
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S1 gene sequence heterogeneity of a pathogenic infectious bronchitis virus strain and its embryo-passaged, attenuated

Shengwang Liu1, Zongxi Han, Jianfei Chen

  • 1Division of Avian Infectious Diseases, National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, People's Republic of China. swliu@hvri.ac.cn

Avian Pathology : Journal of the W.V.P.A
|May 15, 2007
PubMed

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