New Delhi: The World Health Organization has once again pushed back against the persistent belief that vaccines play a role in autism, releasing a fresh review that reinforces what decades of scientific work have already shown: there is no connection between the two. The latest analysis arrives at a time when the debate has resurfaced in the United States, partly because the U.S. Centers for Disease Control and Prevention recently altered some of the language on its website—changes that critics say weaken its long-standing, evidence-based stance that vaccines do not cause autism.

The shift unsettled many public health experts, especially as Robert F. Kennedy Jr., now a central figure in national health policy, has repeatedly echoed misleading claims linking immunisation to neurodevelopme

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