More than 420 bills attacking longstanding public health protections — vaccines, milk safety and fluoride — have been introduced in statehouses across the U.S. this year as part of an organized, politically savvy campaign.

As more parents abstain from vaccinations, children from low-income households may pay the price

As more parents abstain from vaccinations, children from low-income households may pay the price

Systemic barriers limit vaccine access in kids under 24 months old

Spike in kindergarteners receiving vaccine exemptions may threaten herd immunity

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