NaV decreases CD8⁺cell lytic efficiency independently of the increase in Tax expression. The observed decrease in lytic efficiency (where the change calculated by lytic efficiency with NaV/lytic efficiency was < 1) did not correlate with the observed increase in Tax expression (where Tax with NaV/Tax is > 1) in either CD4⁺ (•) or CD8⁺ (▵) cells. Straight lines are lines of best fit to aid visual interpretation of the data.