Among US adults, 23% say RFK Jr recommends that kids should get the measles vaccine, 29% say he does not recommend it, and 48% aren't sure.
The large-scale project was conducted by the Center for Infectious Disease Research and Policy's Vaccine Integrity Project.
The ACIP policymaking maturity rating fell from an overall score of 100% to 58% from April to September this year.
More than twice as many people think the administration's policies have made the country less healthy as those who think they have made the nation healthier.
Combination vaccines exist for a reason: They reduce how many injections children receive and parents' stress.
A call to develop separate measles, mumps, and rubella vaccines to replace the combined MMR shot is not backed by evidence.
The group warns that under Kennedy more childhood vaccines will be in jeopardy.
The Vaccine Integrity Project staff and advisors note the conspicuous and consequential absence of US health agency vaccine campaigns and annual vaccination reminders ahead of respiratory virus season.
Seven states and New York City have been collaborating since early 2025 but formally announced the collaborative yesterday.
Earlier this month, RFK Jr said he does not believe the federal government should mandate any vaccine.
