true, however, if you look at the data that has been released by the FDA, the pfizer vaccine becomes effective already at 7 days from the first jab....
in the trial, in the first 7 days after the first dose, both the group that received the vaccine and the group that received the placebo continue to catch covid at the same rate.
However, starting from 7 days after the first dose, the group that received the vaccine leveled off completely, while in the placebo group the rate of cases continued to increase.
If you look at the graph of the two groups, the line of cases is quite steep for the placebo group, but for the vaccine group, the link only increases in the first 7 days and then flattens out completely...
it's a very marked change and indicates significant protection already at 7 days from the first dose.
well....that was longwinded....LOL.....