To examine whether the effects of bta-miR-98 on regulation of apoptosis during CPIV3 infection were mediated through caspase-3, three caspase-3 RNA Interferences (RNAis) were synthesized which could significantly inhibit the expression of caspase-3 at both the mRNA (Figure 8A) and protein levels (Figure 8B). Here, CASP3 is linked to infection.