PDCoV infection fails to induce IFN-β production in LLC-PK1 cells.
PDCoV infection suppresses Sendai virus-or poly(I: C)-induced IFN-β production.
PDCoV impedes Sendai virus- or poly(I: C)-induced activation of NF-κB and IRF3.
PDCoV interrupts RIG-I signaling pathway to inhibit IFN-β production.