The independent source for health policy research, polling, and news.
KFF’s policy research provides facts and analysis on a wide range of policy issues and public programs.
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.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the organization’s core operating programs.
This brief summarizes the "test-negative" methodology for estimating the effectiveness of influenza and COVID-19 vaccines, noting its strengths and potential limitations. This is the design is used in a CDC-led COVID-19 vaccine study that HHS decided not to publish.
The latest KFF Health Tracking Poll shows that Secretary Kennedy continues to be popular among President Trump’s MAGA base and somewhat popular among supporters of his Make America Healthy Again (MAHA) movement, but his appeal beyond those two groups is limited.
This policy watch examines the United States’ measles elimination status, including what it means to eliminate measles, whether the current measles outbreak could threaten the country’s measles elimination status, and what losing that status might mean for measles control.
KFF's latest Tracking Poll finds that one-third of the public report using AI chatbots for health information and advice in the past year. And a federal judge suspended, for now, the appointments of thirteen members of ACIP, halting a scheduled meeting and staying recent, widely debated, changes to the childhood vaccine schedule.
Drawing on KFF's poll findings, this interactive dashboard tracks the public’s trusted sources for health information, attitudes toward vaccines, and use of news, social media, and AI for health-related information. It provides visual representations of the key trends in the public’s trust in health information and tracks exposure to and belief in false and unproven health claims.
About a third (32%) of adults nationally say they have turned to artificial intelligence (AI) chatbots in the past year for health information, a new KFF Tracking Poll on Health Information and Trust finds. Most who turned to AI for health information say they were in search of quick and immediate advice, though challenges affording and accessing health care also play a role, particularly for younger adults.
A comprehensive timeline of public health policy actions by the Department of Health and Human Services (HHS) under the Trump administration from 2025-2026, with key dates, descriptions, and impacts.
A growing number of states, reaching 30 as of March, have announced that they are no longer following CDC recommendations as their benchmark for some or all childhood vaccines... The court’s stay does not change these states’ decisions and in some ways may allow them to avoid a potential ‘ping pong’ of federal vaccine policy that could result from future legal rulings or actions by the administration.
The EPA launched the next step of its fluoride safety review, as more states move to ban community water fluoridation and senior officials amplify concerns about fluoride beyond what current evidence supports. The Monitor also explores AI policy and content moderation, including the practice of GEO to influence what AI chatbots say.
In his latest column, President and CEO Dr. Drew Altman discusses how midterm political strategy will shape health policy in 2026, focusing on recent moves by President Trump. He writes: “Democrats start out with a significant advantage on health in the midterms, but rather than cut and run to other issues, Trump wants Republicans to try to erode that advantage where they can.”
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