Call it the "covid injection." To the public it makes it sound like doctors and nurses are *injecting* covid. Better, call it the "anti-covid injection." Political solutions fail when they're *only* for OR against something, but not both, which is part of the reason every group tries not to be labelled "anti" anything, but "pro" something or other. It also controls what your opponents can respond with. If we use just the "covid injection" they can respond with ridicule, "lol you nutbag c O n S p I r A c Y theories and dangerous/terroristic disinformation! Because the federal government is CLEARLY injecting us all with covid! /s" cue angry eyes. By calling it "the anticovid injection", they're stuck with "its a vaccine!" which just causes their point to fly over the heads of onlookers, and they miss a rhetorical beat, or they can argue its NOT a vaccine, which leaves you with "well then we dont need it do we?" Or they can whine about your wording and alienate onlookers and you can cast them as crazies, which they are.