FIG. 9.

Viral genome copies in the ganglia of 17/tBTK⁻ (squares)- and 17/tBTKR (triangles)-infected mice from 16 to 60 h p.i. (black solid line). The viral replication contributing to this total number of viral genomes in the ganglia is also shown (eyes, open symbols and black dashed line; ganglia, gray solid symbols and gray solid line). A minimum of three mice per time point was examined. The means ± standard errors of the means of values from three to four mice per time point per group are plotted. The central shaded region indicates the time p.i. during which ganglia from mice infected with 17/tBTK⁻ and 17/tBTKR contain equivalent numbers of the viral protein-expressing neurons.