Every school year, in all 50 states, parents have to prove their kids have received certain vaccines before enrolling them in school. Specific requirements differ from state to state, but the general rules is the same: no vaccines, no school. It took more than a century for school vaccination laws to take root. And even today, public health officials and parents continue to puzzle over who and what they should cover.
WHYY, Aug. 23, 2018
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