PLAU and infection: VEGFA and PLAU mRNA expression were measured by qPCR throughout the 48 h course of CSFV infection, and significant differences (p-value < 0.05) were observed between the 0 and 48 h groups for CSFV Shimen infection, suggesting a VEGFA and PLAU expression pattern similar to that predicted by DGE analysis (Fig. 2c, d).