How old does a child have to be for the 1st flu shot?
A child must be 6 months old for their first flu shot. They are given 2 doses, 30 days apart. The second dose is so important because that first is just a primer.
A child must be 6 months old for their first flu shot. They are given 2 doses, 30 days apart. The second dose is so important because that first is just a primer.