Increased viperin expression induced by avian infectious bronchitis virus inhibits viral replication by restricting cholesterol synthesis: an in vitro study oleh Yu Zhang, Tao-Ni Zhang, Yan-Peng Lu, Li-Na Ren, Sheng-Ting Chen, Ling Liu, Lan-Ping Wei, Ji-Ming Chen, Jian-Ni Huang, Mei-Lan Mo