I'm surprised this isn't taken as an opportunity to acknowledge and explain the thousands upon thousands of bad reactions ... "it's simply a dosing mistake, no worries. The jab is working exactly as expected. Save for a tiny fraction, they're just tired and achey for a few days. Nothing to see here."
Never let a crisis go to waste, right?
I think we all can agree the vaccines and boosters are not perfect. 60 or 70% of adults get some pretty significant fatigue and soreness that can last a day or two.
But the serious side effects are very difficult to pin down to a number anyone can agree on. But again, thousands and thousands of “bad” reactions compared to hundreds of millions of doses.
You could even tell them they need a vaccine for a virus with a 99.7 percent-plus recovery rate and they'd believe you.
Wonders never cease.