Total RSV production is proportional to the inoculum MOI.

The concentration of total RSV in the supernatant quantified via qRT-PCR (vRNAe/mL) at 14 dpi for infections performed in duplicate is shown as a function of the MOI of the inoculum deposited onto the SIAT cells (TCID69/cell). The relation shown (solid line) corresponds to log10(y) = log10(x) + b where b = 9.3 ± 0.8 and R2 is as shown. The total number of RSV progeny produced over the course of the infections is approximately proportional to inoculating MOI. Duplicate measures (two symbols) rather than error bars are plotted at each sampling time point, through in some cases only one point is visible.