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 report summarizes the public’s response to a series of open-ended questions aimed at better understanding people’s concerns around receiving a COVID-19 vaccine and the views of the messages and messengers that could affect their willingness to get one,
With the COVID-19 vaccination rollout still in its early stages, a KFF analysis finds that most older adults have not yet been vaccinated against the potentially deadly virus, as vaccine supplies remain limited and most states have only recently begun to make people 65 and older eligible.
This analysis looks at vaccination rates among older adults at the state level, and the share of all vaccines administered that have been given to older adults, among states reporting vaccination data by age.
As the country broadens COVID-19 vaccine distribution efforts, the latest research from the KFF COVID-19 Vaccine Monitor finds that side effects, including allergic reactions and long-term consequences, are the public’s top concern about getting vaccinated when asked to describe what worries them in their own words.
This issue brief examines key issues related to multi-dose vaccination series generally as well as issues specific to COVID-19.
Updated analysis of state-reported data as of February 1, 2021 on COVID-19 vaccinations, cases, and deaths by race/ethnicity is now available.
Additional Data Available Through Online Vaccine Monitor Dashboard As vaccination efforts ramp up across the country, the KFF COVID-19 Vaccine Monitor examines where the public is getting its relevant information.
During the 53rd week since the first coronavirus case appeared in the United States, the world surpassed 100 million COVID-19 cases, with the United States accounting for a quarter of them. The U.S. also accounts for one-fifth (433,200) of the world’s nearly 2.2 million reported deaths.
Most Convincing Messages to Promote Vaccination Highlight Effectiveness at Preventing Illness and a Return to Normal Life; Hearing about Rare Allergic Reactions and Side Effects May Discourage Some New KFF Dashboard Features Key Data and Insights from the Vaccine Monitor With millions of Americans getting their first COVID-19 vaccinations, the public’s eagerness to get a…
This brief reviews why racial diversity within COVID-19 vaccine clinical trials is important, discusses the barriers to participation in clinical trials among people of color, and examines the racial/ethnic composition of clinical trial participants for the Pfizer-BioNTech and Moderna vaccines.
© 2026 KFF