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The Harm and Immunization Strategy of Porcine Reproductive and Respiratory Syndrome Virus

WANG Zhen-hua1, CAO Xiao-han2, SONG He1, WANG Di1, ZENG Xian-yin2   

  1. 1. Chengdu Vocational College of Agricultural Science and Technology, Wenjiang 611130, China;2. Isotope Research Laboratory, College of Life and Basic Sciences, Sichuan Agricultural University, Ya’an 625014, China)
  • Received:2013-07-22 Online:2014-02-20 Published:2014-03-27

Abstract: Porcine reproductive and respiratory syndrome is a serious disease, causing significantly economical impacts on the swine industry worldwide. Because of the mechanism of virus infection, the characteristics of antibody-dependent enhancement and a high degree of variability, the commercial vaccines currently exist defects that can’t completely prevent the respiratory system and placental transmission of porcine reproductive and respiratory syndrome virus (PRRSV). Therefore, according to the pathogenic characteristics, PRRSV immune characteristics and biological characteristics, the new vaccines are designed which have important significances to the prevention of the disease.

Key words: porcine reproductive and respiratory syndrome virus; harm; immunization