FIG. 1.

Effect of pRSV exposure (MOI = 1, 24 h) or control medium on binding of NTHI^F+ to A549 cell monolayers (A549:NTHI = 1:0.5), as determined by the culture method. The values are means of experiments performed in triplicate. Here and in Fig. 3, 4, 7, and 8, error bars indicate standard deviations.