FIG. 3.

Effect of RSV on carbachol (CCH) (100 μmol/liter)-induced ion transport in the mouse trachea. Original Ussing chamber recordings of V_te and the CCH responses prior to and following apical exposure for 1 h to RSV (1 × 10⁴ PFU/ml) (A) or to control buffer (C). Panel B summarizes the effects of 1 h of exposure to RSV on the CCH-induced change in the short-circuit current (I_scEq-CCH). Dashed lines in panels A and C indicate the effects of CCH. Panel D summarizes the effects of 1 h of exposure to control buffer on the CCH-induced change in I_scEq-CCH. The data are presented as means ± SEM (with the number of experiments in parentheses).