Emerging microbes & infections · 2023
Evaluation of an I177L gene-based five-gene-deleted African swine fever virus as a live attenuated vaccine in pigs.
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Liu Yingnan, Xie Zhenhua, Li Yao, Song Yingying, Di Dongdong, Liu Jingyi, Gong Lang, Chen Zongyan, Wu Jinxian, Ye Zhengqin, Liu Jianqi, Yu Wanqi, Lv Lu, Zhong Qiuping, Tian Chuanwen, Song Qingqing, Wang Heng, Chen Hongjun
Аннотация
African swine fever (ASF) is a highly contagious disease of domestic and wild pigs caused by the African swine fever virus (ASFV). The current research on ASF vaccines focuses on the development of naturally attenuated, isolated, or genetically engineered live viruses that have been demonstrated to produce reliable immunity. As a result, a genetically engineered virus containing five genes deletion was synthesized based on ASFV Chinese strain GZ201801, named ASFV-GZΔI177LΔCD2vΔMGF. The five-gene-deleted ASFV was safe and fully attenuated in pigs and provides reliable protection against the parental ASFV strain challenge. This indicates that the five-gene-deleted ASFV is a potential candidate for a live attenuated vaccine that could control the spread of ASFV.