If the vaccine was just saline, we'd expect all the bars to be the same height, right?
Only if each cohort took the faulty tests at the same rate also... The differing levels could be nothing more that a reflection of the propensity to use the faulty worthless test, and it's probably reasonable to speculate the 3 dose cohort are the least well informed/most risk averse therefore most likely to trust the test (which is not a test nor is it even exclusively calibrated to the mythical covid-19)
Only if each cohort took the faulty tests at the same rate also... The differing levels could be nothing more that a reflection of the propensity to use the faulty worthless test, and it's probably reasonable to speculate the 3 dose cohort are the least well informed/most risk averse therefore most likely to trust the test (which is not a test nor is it even exclusively calibrated to the mythical covid-19)