Figure 2

Effects of the infection time relative to competitor. Mean titers for DENV2 (circles) and DENV4 (triangles) are plotted against the time that each strain was added to cells relative to the other strain (i.e., the circle at X = -6 indicates the titer of DENV 2 when DENV 2 was infected 6 hours before DENV 4, while the circle at X = 6 indicates the titer of DENV 2 when DENV 2 was infected 6 hours after DENV 4, and X = 0 indicates that both were added at the same time, etc). Titer data are from the final sampling point (120 hours, N = 4 per data point). The titer of each strain in single infection (MOI = 5) is plotted as a straight line for comparison; DENV2 (black) and DENV4 (grey).