Early vaccines got the dosage wrong and sometimes killed people... I think in this day and age if something similar happened, it'd be pulled off the shelves, an

Early vaccines got the dosage wrong and sometimes killed people... I think in this day and age if something similar happened, it'd be pulled off the shelves, and tens of thousands of lives would be lost due to it being unavailable. Progress = risk. Yes, it should be measured and thoughtful, but overreaction seems rampant.