FIG. 6.

Reduction of latent infection by challenge virus in trigeminal ganglia of mice immunized with KOS, d27, or CJ83193. Mice described in experiments presented in Fig. 5 and from a similar experiment in which mice were immunized with either mock-infected cell lysate (n = 12) or CJ83193 at 2 × 10⁶ PFU/mouse (n = 4) were sacrificed 30 days after challenge. Trigeminal ganglia of mice from different groups were processed and cocultivated individually onto Vero cell monolayers. After 5 days of cocultivation, explants were harvested, processed, and assayed on Vero cell monolayers for the presence of infectious viruses.