At P15, treatment x sex analysis revealed a significant effect of infection on BDNF expression (Fig. 4E), but no change to the expression of TGFβ (Fig. 4F) (treatment x sex, BDNF; F (1, 27) = 5.235, p = 0.031, TGFβ; F (1, 27) = 4.009, p = 0.055). Here, BDNF is linked to infection.