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Study: RFK Jr.'s Vaccine Decision Harmful to US Toddlers

An independent analysis indicates that the decision to remove federal recommendations for the MMRV combination vaccine could be detrimental to US toddlers.

10 July 2026
Study: RFK Jr.'s Vaccine Decision Harmful to US Toddlers

An analysis published by independent researchers demonstrates the potential harm to US toddlers resulting from the decision to strip federal recommendations for the measles, mumps, rubella, and varicella (MMRV) combination vaccine. The decision was made last September by a panel of advisors selected by Health Secretary Robert F. Kennedy Jr.

The advisors, part of the Centers for Disease Control and Prevention's Advisory Committee on Immunization Practices (ACIP), reportedly did not use their standard framework for evaluating the decision's impact on US children. This framework typically assesses practical implications, including which children would be affected.

Following the decision, private health insurance providers are no longer mandated to cover the MMRV vaccine. Furthermore, the vaccine is no longer available through a federal program that supplies vaccines to approximately half of American children, many from low-income families.

The study suggests that this change could lead to decreased vaccination rates and an increased risk of measles outbreaks, particularly affecting vulnerable young children.

Original source: arstechnica.com