Virus yields of replication-competent HSV-1 mutants in various cell
lines. Cells were seeded on 6-well plates at 5 × 105
cells per well. Triplicate wells were infected with R3616, R47Δ,
G207, G47Δ, or strain F at an moi of 0.01. At 24 h after
infection, cells were scraped into the medium and progeny virus was
titered on Vero cells. In all cell lines tested, G47Δ showed a
significantly higher replication capability than G207. Results
represent the mean of triplicates ± SD.