Relative adherence of AS-transfectants (bar AS) compared with wt-(bar wt) and S-transfected (bar S) parasites. T. vaginalis parasites expressing antisense display decreased adherence to MS-74 VECs. The extent of adherence by wt organisms was normalized to 100% for comparative purposes. The results are the average from four different experiments. Each experiment was performed in quadruplicate samples. The asterisk illustrates that this extent of decrease was statistically significant (p < 0.05).