FIG 3.

Replication of NgK and MgK viruses in vitro. Subconfluent RS cell monolayers were infected with 0.01 or 0.1 PFU of NgK, MgK, or RgK virus/cell as described in Materials and Methods. Total virus was harvested at the indicated times postinfection by two cycles of freeze-thawing. The amount of virus at each time point was determined by standard plaque assays on RS cells. Each point represents the mean ± the standard errors of the mean (SEM) from two separate experiments (n = 8). (A) 0.01 PFU; (B) 0.1 PFU.