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.
With recent federal actions to curtail vaccine access, many states have announced actions intended to maintain broader access. This issue brief provides a snapshot of this rapidly changing landscape, tracking which states have instituted changes in response to or in anticipation of administration policy changes.
This report explores the roughly a third of adults who have not received a COVID-19 vaccine and finds that, compared to vaccinated adults, they are younger, more likely to identify as Republican or Republican-leaning, with lower incomes and education levels, and more likely to be uninsured.
The latest KFF COVID-19 Vaccine Monitor survey reveals that half (51%) of all adults nationally say they “definitely” or “probably” will not get the latest COVID-19 vaccine, with many saying that they aren’t worried about catching the virus.
With supply having increased significantly and eligibility fully open to adults in all states as of April 19, this analysis estimates that COVID-19 vaccine supply will exceed demand across the U.S. over the next 2 to 4 weeks.
As the Trump administration overhauls government health agencies, partisan trust in these agencies on vaccines has shifted and few express confidence in their ability to carry out key tasks. Most adults are confident in the safety of routine vaccines, but the COVID-19 vaccines remain polarizing with many uncertain about false claims regarding mRNA technology.
This brief examines key policy challenges and issues related to distributing a COVID-19 vaccine in the U.S., including funding, supply and logistics, federal, state, and local authorities, insurance coverage, addressing racial and ethnic disparities, and communication and trust.
This Vaccine Monitor finds a growing share of U.S. adults say they have already gotten at least one dose of the vaccine or want to get vaccinated as soon as possible. It explores vaccine intentions, information gaps, vaccine brand preferences, and tests a variety of potential incentives, messages, and pieces of information that might be used to increase vaccination uptake.
This issue brief explains the legal basis for vaccine mandates by the federal government, states, and private employers; highlights considerations for mandates while the COVID-19 vaccine is under an EUA; and discusses mandate exemptions based on disability or religious objection.
To better understand the extent to which states have adopted policies consistent with CDC guidance, we examined state policies for all 50 states and DC focused on COVID-19 prevention strategies in K-12 public schools for the 2021-2022 school year.
We reviewed the websites and other official state sources for all 50 states and D.C. to see which are providing data on COVID-19 breakthrough cases, hospitalizations and deaths, how regularly, and what those data may tell us.
© 2026 KFF