extremely significantp < 0.01
At 2 h post-infection, the virulence of the deletion strain ∆ preA in EPC cells was 1.3-fold higher than that of the parent strain; the difference between the two strains was extremely significant ( p < 0.01). 2.6.
At 2 h post-infection, the virulence of the deletion strain ∆ preA in EPC cells was 1.3-fold higher than that of the parent strain; the difference between the two strains was extremely significant ( p < 0.01). 2.6.