‘Good science takes time’: Researcher skeptical autism cause will be found by September

In a news conference on the rise in autism spectrum disorder, Health Secretary Robert F. Kennedy Jr. made no mention of vaccines and instead emphasized the government’s plans to study potential environmental factors. To help put Kennedy's pledge in context, Stephanie Sy spoke with Christine Ladd-Acosta of the Johns Hopkins Bloomberg School of Public Health. PBS News is supported by - https://www.pbs.org/newshour/about/funders