Figure 4

Immunohistochemistry for CD11b detection in the brain. (a) 10⁶ PFU POWV, apical meninges. (b) 10⁶ PFU POWV + 2 SGE, apical meninges. (c) 10³ PFU POWV, basal meninges. (d) 10³ PFU POWV + 2 SGE, basal meninges. (e) Uninfected control, apical meninges. Scale bars represent 20 µm.