A wave of anti-science bills has been introduced in statehouses across America this year, pushed by people with special interests who have close ties to Health Secretary Robert F. Kennedy Jr.

An Associated Press investigation found more than 420 bills attacking longstanding public health protections such as vaccines, milk safety and fluoride in most states. More than two dozen have already been enacted or adopted.

They are part of an organized, politically savvy effort that normalizes ideas fueled by the anti-vaccine movement that Kennedy has helped lead for years. His Make America Healthy Again agenda masks anti-science ideas while promoting goals such as making food more natural or reducing chemicals. Meanwhile, vaccination rates continue to fall, allowing the infectious diseases measl

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