A Dr. mentioned this last year in a vid I posted, it depends on the number in the Lot. Might be the last number, but it went 1-2-3, as in one was super potent, the next was regular, the last was a placebo.
@Omnipotent I agree on the anti-viral!!! Ivermectin one of the best, and is one of the main ones in military documents saying so. Same documents say "vax dont work".