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Innate Immune Responses against Highly Pathogenic Porcine Reproductive and Respiratory Syndrome Virus

Innate Immune Responses against Highly Pathogenic Porcine Reproductive and Respiratory Syndrome Virus

Shen Yang1, Guang-Zhi Tong1, 2*

1Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, PR China; 2Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses,Yangzhou, 225009, PR China.

gztong@shvri.ac.cn

ABSTRACT

Antiviral innate immunity plays a central role at the early stage of viral life cycles. The highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) is a major concern for the swine industry and causes high degrees of morbidity and mortality. The intracellular signalling cascades of the innate immune system triggered by HP-PRRSV often lead to the elimination of infection. However, HP-PRRSV induces pathological changes and can cause aberrant immune responses in the host, resulting in acute lung injury and immune dysfunction. Studies of the innate immune responses to HP-PRRSV infection are crucial to gaining insight into HP-PRRSV-induced pathogenesis and for the development of novel protective vaccines. In this review, we discuss the innate immune responses against HP-PRRSV infection and suggest new areas of investigation into this important interface between pathogen and host.

 

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Hosts and Viruses

June

Vol.6, Iss.3, Pages 42-84

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