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. 2000 Dec;74(24):11437–11446. doi: 10.1128/jvi.74.24.11437-11446.2000

FIG. 5.

FIG. 5

Efficiencies of initial infection and cell-cell spread by recombinant viruses on susceptible and resistant cells. (A) Efficiency of plaque formation on susceptible 100-33 cells. (B) Efficiency of initial entry of free virus on resistant US11cl19.3 cells. (C) Efficiency of subsequent cell-cell spread on resistant US11cl19.3 cells plotted as a percentage of initial infections. Between 20 and 200 plaques were counted for each virus. All assays were conducted in triplicate. Error bars represent the range of values obtained.

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