FIG. 2.

Infectious virion production in dengue virus-infected KU812 and Vero cells. Infection conditions were as described in the legend to Fig. 1 (MOI, 0.1 to 0.3). Virion production was assessed by a 50% tissue culture infective dose assay (43) on Vero cells at 4, 24, 48, and 72 h postinfection. Data are representative of three separate experiments and are expressed as the mean ± the standard error of the mean.