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Parent Fears Keep Children from Vaccines

About 20 percent of U.S. preschoolers -- more than 2 million children -- aren't getting recommended vaccinations. New research suggests the toughest obstacle may be parents who believe vaccines are more dangerous than the diseases they prevent. NPR's Jon Hamilton reports.

Copyright 2022 NPR. To see more, visit https://www.npr.org.

Jon Hamilton is a correspondent for NPR's Science Desk. Currently he focuses on neuroscience and health risks.