FIG. 4.
Effects on entry. Wild-type KOS (closed diamonds) or 5652r-1 (open diamonds) was allowed to attach to cells at 4°C, unattached virus was removed, and the cells were incubated at 37°C in various concentrations of 5652 for 2 h (A) or in the absence of drug for various lengths of time (B). At the end of each time period, virus that had not entered was inactivated, medium containing methylcellulose was added, and plaques were allowed to form. For both assays, the results are presented as the means of a single experiment done in duplicate and are representative of two independent experiments. Error bars represent standard errors of the means unless these standard errors were too small to be visible on the plots.