The acting chief of the Centers for Disease Control and Prevention on Monday called for the combination measles, mumps, and rubella vaccine to be broken up into three separate shots, a move that would turn back the clock on more than fifty years of vaccine policy.
Acting CDC director Jim O’Neill suggested the MMR be split up in a social media post, just after U.S. President Donald Trump also made a similar argument in his own post. There’s no evidence that the combined MMR, or the childhood vaccination schedule in general, is in any way dangerous to children—a reality that the CDC still acknowledges on its website (for now at least). There is also no evidence that breaking up the MMR would be safer. Rather, it could make it incredibly hard for parents to get their children fully vacci