A discredited study published in 1989 first alleged a link between thimerosal and autism. Flavio Coelho/Moment via Getty Images

A preservative removed from childhood vaccines 20 years ago is still causing controversy today − a drug safety expert explains

There’s no solid evidence that thimerosal harms children. RFK Jr.’s handpicked vaccine advisory committee voted against using it in the one type of flu vaccine where it is still used.

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