Analysis of Quasispecies Diversity and Mutations for Highly Pathogenic Porcine Reproductive and Respiratory Syndrome Virus in China Based on ORF5 Genes

Peng Zhao, Cheng-Tai Ma and Zhi-Zhong Cui

Journal of Animal and Veterinary Advances 11 ( 15 ): 2741 - 2746 , 2012