RPS3 and infection: Moreover, at 36 and 60 h post-infection, the titers of recombinant PRVs with the first 10 codon deoptimization of US3-S (106.32 ± 0.04 TCID50/ml at 36 h post-infection; 107.00 ± 0.14 TCID50/ml at 60 h post-infection) or UL56 (107.08 ± 0.30 TCID50/ml at 36 h post-infection; 106.86 ± 0.22 TCID50/ml at 60 h post-infection) were higher than recombinant PRVs with all codon deoptimization of US3-S (105.70 ± 0.05 TCID50/ml at 36 h post-infection; 106.35 ± 0.08 TCID50/ml at 60 h post-infection) or UL56 (106.17 ± 0.10 TCID50/ml at 36 h post-infection; 106.08 ± 0.22 TCID50/ml at 60 h post-infection).