IRF3 and infection: Either CAP exposure or IBRV infection triggered IRF3 and IRF7 overexpression; yet CAP significantly reduced the increased level of IRF7 on IBRV infection back to normal (p = 0.021 for IRF7 at 2-min CAP, p = 0.018 for IRF7 at 4-min CAP, Figure 6a), and suppressed IRF3 expression with marginal significance (p = 0.171 for IRF3 at 2-min CAP, p = 0.077 for IRF3 at 4-min CAP, Figure 6b).