Fig 7.

Effect of TNF-α treatment on apparently nonrandom coinfection. HeLa cells were incubated with a GFP or DsRed reporter or a VSV-G-pseudotyped virus or coincubated with both viruses. The cells were treated with 10 ng/ml of TNF-α or vehicle 24 h postinfection and analyzed by flow cytometry. (A) The percentages of reporter-positive cells were analyzed as for Fig. 1. (B) The coinfection index was calculated as for Fig. 2. Two-proportion z test; ***, z > 3.29, P < 0.001; *, z > 1.65, P < 0.05. The error bars indicate standard deviations.