Vaccine safety

For almost three decades, the idea that childhood vaccines cause autism has lingered in the public imagination. It began with a single flawed study and evolved into a full cultural debate that has touched parents, policymakers, scientists, and online communities alike. For parents, the worry is not simply academic. When a child shows delays in …

A quiet shift may be underway at one of America’s most powerful health agencies. According to sources familiar with internal discussions, officials at the U.S. Food and Drug Administration are weighing whether to add a black box warning to COVID-19 vaccines. Such a move would represent the strongest regulatory caution the agency can issue, reserved …