The baby is upset even before vaccines because of all the manhandling. Why do the health workers insist that they have to their heads this way, lie this way, hold the arms and legs down. By the time they’ve done all that the baby is terrified. I’ve noticed too that older Asian children are all scared when they know they’re going in for a shot.
This is a form of vaccination. In Korea, vaccinations that are essential when you are a baby are set. Most parents have already given the baby a shot before judging about this.