Fig. 5. Fold-changes in gene expression of PKR (A), OAS (B), and Mx (C) in different tissues of virus-infected ducks compared to control animals. The controls were inoculated with PBS while the experimental ducks were infected with Herts33 NDV. Each bar represents the level of target gene mRNA relative to that in the control group. *Significant differences (p < 0.05) between the experimental and control groups. Error bars indicate the SD.
