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KFF designs, conducts and analyzes original public opinion and survey research on Americans’ attitudes, knowledge, and experiences with the health care system to help amplify the public’s voice in major national debates.
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This volume shares updates from the most recent CDC advisory panel meeting, changes to the CDC webpage on autism and vaccines, and polling on trust in news organizations. Additionally, it shares recent developments in AI and social media policy and new KFF poll findings about perceptions of mifepristone’s safety and prevalence.
This policy watch examines state-by-state school vaccine requirements and exemptions, including recent policy changes to them and the extent to which they may affect vaccination rates.
This issue brief gives an overview of the main systems used by the federal government to track vaccine safety and adverse events following vaccinations. The brief reviews the history of federal vaccine safety systems, describes the key systems and their strengths and limitations, and also discusses how vaccine safety issues have become the subject of more scrutiny under the Trump administration.
This brief describes four key federal vaccine advisory committees and discusses policy issues and questions they currently face. The four committees are the Vaccines and Related Biological Products Advisory Committee (VRBPAC) at the Food and Drug Administration (FDA); the Advisory Committee on Immunization Practices (ACIP) at the Centers for Disease Control and Prevention (CDC); the National Vaccine Advisory Committee (NVAC) at the Department of Health and Human Services (HHS); and the Advisory Commission on Childhood Vaccines (ACCV) at HHS.
This brief looks at newly announced changes by HHS to the pediatric vaccination schedule, which reduce the number of vaccines recommended for all children. Implications of these changes for childhood vaccination rates and trust in public health are discussed.
Recent changes to the CDC’s website language falsely asserting that a link between vaccines and autism cannot be ruled out may introduce ambiguity that online narratives can exploit.
Adopting Denmark’s vaccine schedule, as HHS Secretary Kennedy's vaccine advisors have suggested, would likely lower childhood vaccination rates in the U.S. as certain vaccines become harder to access.
Starting in May of last year, HHS Secretary Kennedy and the CDC/ACIP began to make changes to the federal vaccine schedule for children, culminating in an announcement on January 5 of this year with the most wide-ranging changes to date. This policy brief tracks the number of states that have announced they are no longer following federal government recommendations for childhood vaccines as of January 20, 2026.
This fact sheet examines Gavi, the Vaccine Alliance (also known as Gavi), an independent, public-private partnership and multilateral funding mechanism that aims to increase access to immunization in lower income countries, and explores the role the U.S. government plays in supporting the partnership.
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