Fig. 1.
Effects of AMC/DCBA on PIV3. AMC/DCBA, amylmetacresol/2,4-dichlorobenzyl alcohol; PIV3, parainfluenza virus type 3; TCID50, tissue culture infectious dose 50%. *p < 0.01 and **p < 0.001 compared with placebo lozenge for the same contact time. Positive control was tested at 1 min contact time only (not 10 min). Results for 5 min contact time with AMC/DCBA lozenge not shown. The error bars indicate the standard error of the mean.