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... The survey found that one in three parents of children under age 5 say they intend to delay or refuse some or all of their children's recommended vaccines. Only about 4% of first-time pregnant women intend to delay or refuse all recommended vaccines.

However, the study showed that first-time pregnant women are far more uncertain about vaccination decisions. Nearly half of these women are unsure if they will fully vaccinate their children, compared to only 4% of parents of young children who stated they are uncertain.

About 40% of parents say they intend for their child to receive all recommended vaccines, while 20% plan to delay some vaccines. Over 30% of parents with young children intend to refuse some or all vaccines for their children. ...