Choroid plexus of naïve and infected rabbits.

<p>H&E staining of choroid plexus from a naïve rabbit (A and B), from representative rabbits that succumbed to IN instillation of Vollum spores (C), or to IV inoculation of VollumΔTox bacteria (D). Magnification x100. The typical structure of the choroid plexus from a naïve brain (A, B) with normal size blood vessels (B), in contrast to the damaged structure containing bacterial clamps in the CSF of the Vollum (C) or VollumΔtox (D) infected animals.