Do note that there is no safety data yet for children, "youngest" in this case, is ~20 year olds; and that there has been a famous case where a vaccine that was safer for over-20 significantly increased the risk for narcolepsy 6 fold for under-20. (Safety profile was established for adults, but the vaccine was given to children). More at https://en.wikipedia.org/wiki/Pandemrix#Narcolepsy_investiga...
Do note that there is no safety data yet for children, "youngest" in this case, is ~20 year olds; and that there has been a famous case where a vaccine that was safer for over-20 significantly increased the risk for narcolepsy 6 fold for under-20. (Safety profile was established for adults, but the vaccine was given to children). More at https://en.wikipedia.org/wiki/Pandemrix#Narcolepsy_investiga...