{"id":699256,"date":"2025-12-11T08:00:00","date_gmt":"2025-12-11T13:00:00","guid":{"rendered":"https:\/\/www.kff.org\/?p=699256"},"modified":"2025-12-11T11:20:58","modified_gmt":"2025-12-11T16:20:58","slug":"cdc-vaccine-panel-ends-universal-hepatitis-b-recommendation-and-reviews-aluminum-in-vaccines-plus-public-awareness-of-mifepristone-safety","status":"publish","type":"post","link":"https:\/\/www.kff.org\/health-information-trust\/cdc-vaccine-panel-ends-universal-hepatitis-b-recommendation-and-reviews-aluminum-in-vaccines-plus-public-awareness-of-mifepristone-safety\/","title":{"rendered":"CDC Vaccine Panel Ends Universal Hepatitis B Recommendation and Reviews Aluminum in Vaccines, Plus Public Awareness of Mifepristone Safety \u2014 The Monitor"},"content":{"rendered":"<div\n\tclass=\"no-sidebar wp-block-kff-shared-content--blank-slate wp-block-kff-shared-content\">\n\t\n\n<section class=\"wp-block-kff-shared-content-main\">\n\t\t\t\t<div class=\"wp-block-kff-shared-content-main__content__inner\">\n\t\t\n\n<div class=\"wp-block-group has-background is-layout-constrained wp-block-group-is-layout-constrained wp-block-block\" style=\"background-color:#001c34;margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-group hide-group-block-on-mobile has-background is-layout-constrained wp-block-group-is-layout-constrained\" style=\"background-color:#001c34;margin-top:0;margin-bottom:0\">\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><a href=\"https:\/\/www.kff.org\/series\/the-monitor\/\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"450\" src=\"https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250825_The-Monitor_Hero_Desktop_2.png\" alt=\"\" class=\"wp-image-687380\" style=\"object-fit:cover;width:1280px;height:220px\" srcset=\"https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250825_The-Monitor_Hero_Desktop_2.png 2560w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250825_The-Monitor_Hero_Desktop_2.png?resize=300,53 300w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250825_The-Monitor_Hero_Desktop_2.png?resize=768,135 768w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250825_The-Monitor_Hero_Desktop_2.png?resize=1024,180 1024w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250825_The-Monitor_Hero_Desktop_2.png?resize=1536,270 1536w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250825_The-Monitor_Hero_Desktop_2.png?resize=2048,360 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-group hide-group-block-on-desktop has-background is-layout-constrained wp-block-group-is-layout-constrained\" style=\"background-color:#001c34;margin-top:0;margin-bottom:0\">\n<figure class=\"wp-block-image aligncenter size-full\"><a href=\"https:\/\/www.kff.org\/series\/the-monitor\/\"><img loading=\"lazy\" decoding=\"async\" width=\"940\" height=\"300\" src=\"https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2024\/07\/250825_The-Monitor_Hero_Hero-Image_Mobile.png\" alt=\"\" class=\"wp-image-687283\" style=\"object-fit:cover\" srcset=\"https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2024\/07\/250825_The-Monitor_Hero_Hero-Image_Mobile.png 940w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2024\/07\/250825_The-Monitor_Hero_Hero-Image_Mobile.png?resize=300,96 300w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2024\/07\/250825_The-Monitor_Hero_Hero-Image_Mobile.png?resize=768,245 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-c19ea4e6 wp-block-columns-is-layout-flex\" style=\"margin-top:0;margin-bottom:0;padding-bottom:0px\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-right:0px;padding-left:0px;flex-basis:900px\">\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\" style=\"margin-top:0px;margin-bottom:0px;padding-top:0px;padding-bottom:0px\">\n<div class=\"wp-block-group is-content-justification-left is-nowrap is-layout-flex wp-container-core-group-is-layout-843b9e6d wp-block-group-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--60);padding-bottom:0\">\n<p class=\"wp-block-paragraph\"><strong>VOLUME 36<\/strong><\/p>\n\n\n<div style=\"font-size:18px; padding-top:0px;padding-bottom:0px;\" class=\"wp-block-post-date\"><time datetime=\"2025-12-11T08:00:00-05:00\">December 11, 2025<\/time><\/div><\/div>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"h-cdc-vaccine-panel-ends-universal-hepatitis-b-recommendation-and-reviews-aluminum-in-vaccines-plus-public-awareness-of-mifepristone-safety\" style=\"padding-top:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20)\">CDC Vaccine Panel Ends Universal Hepatitis B Recommendation and Reviews Aluminum in Vaccines, Plus Public Awareness of Mifepristone Safety<\/h1>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-ec8ea0af wp-block-group-is-layout-flex\" style=\"margin-top:0px;margin-bottom:0px;padding-top:0px;padding-bottom:0px\">\n<div class=\"wp-block-kff-shared-authors\">\n\t\t<div class=\"wp-block-kff-shared-authors__list wp-block-kff-shared-authors__list--show-seperators\">\n\t\t\t\t\t\n\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kff.org\/person\/irving-washington\/\" class=\"wp-block-kff-shared-authors__author\">\n\t\t\t\t\t\t\t\t\t\tIrving Washington\t\t\t\t<\/a>\n\t\t\t\n\t\t\t\t\t\t\t<span class=\"wp-block-kff-shared-authors__seperator\">,<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kff.org\/person\/hagere-yilma\/\" class=\"wp-block-kff-shared-authors__author\">\n\t\t\t\t\t\t\t\t\t\tHagere Yilma\t\t\t\t<\/a>\n\t\t\t\n\t\t\t\t\t\t\t<span class=\"wp-block-kff-shared-authors__seperator\">,<\/span>\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t<span class=\"wp-block-kff-shared-authors__seperator\">\n\t\t\t\t\tand\t\t\t\t<\/span>\n\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kff.org\/person\/joel-luther\/\" class=\"wp-block-kff-shared-authors__author\">\n\t\t\t\t\t\t\t\t\t\tJoel Luther\t\t\t\t<\/a>\n\t\t\t\n\t\t\t\t\t\t<\/div>\n<\/div>\n\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\" style=\"margin-top:25px;margin-bottom:25px\" \/>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"h-summary\">Summary<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This volume examines a CDC advisory panel&#8217;s recent vote to change the <a href=\"#hepatitis-b\">hepatitis B vaccine<\/a> recommendation for newborns and its review of aluminum adjuvants in vaccines, despite safety data supporting both. It also provides updates on the CDC\u2019s change to its <a href=\"#autism-vaccines-webpage\">page on autism and vaccines<\/a> and new data showing <a href=\"#trust-in-news\">erosion of trust in news<\/a> organizations. Additionally, it explores Senate committee hearings about <a href=\"#government-social-media\">alleged government pressure<\/a> on social media platforms, ongoing efforts to limit states\u2019 ability to <a href=\"#ai-regulations\">regulate artificial intelligence (AI)<\/a>, and a study revealing that misinformation sites are more welcoming to <a href=\"#ai-scrapers\">AI web crawlers<\/a> than reputable news outlets. Lastly, it presents findings from a new KFF poll about perceptions of the safety and prevalence of the <a href=\"#mifepristone\">abortion medication mifepristone<\/a>.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\" style=\"padding-top:0;padding-bottom:0\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\" style=\"margin-top:25px;margin-bottom:25px\" \/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-we-are-watching\">What We Are Watching<\/h2>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading has-heading-4-font-size\" id=\"hepatitis-b\">CDC Vaccine Advisory Panel Changes Hepatitis B Recommendation and Reviews Aluminum Adjuvants<\/h3>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\" style=\"padding-top:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20)\">\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><a href=\"https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/12\/10902-12.11.2025-Image-1-GettyImages-1317577867-web.jpg\"><img loading=\"lazy\" decoding=\"async\" height=\"680\" width=\"1024\" src=\"https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/12\/10902-12.11.2025-Image-1-GettyImages-1317577867-web.jpg?w=1024\" alt=\"An infant lies on a table with a patterned Band-Aid on their thigh.\" class=\"wp-image-699461\" style=\"width:1200px\" srcset=\"https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/12\/10902-12.11.2025-Image-1-GettyImages-1317577867-web.jpg 1600w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/12\/10902-12.11.2025-Image-1-GettyImages-1317577867-web.jpg?resize=300,199 300w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/12\/10902-12.11.2025-Image-1-GettyImages-1317577867-web.jpg?resize=768,510 768w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/12\/10902-12.11.2025-Image-1-GettyImages-1317577867-web.jpg?resize=1024,680 1024w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/12\/10902-12.11.2025-Image-1-GettyImages-1317577867-web.jpg?resize=1536,1020 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Karl Tapales \/<em> Getty Images<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">At its December 4-5 <a href=\"https:\/\/www.cdc.gov\/acip\/meetings\/index.html\">meeting<\/a>, the CDC\u2019s <a href=\"https:\/\/www.kff.org\/other-health\/acip-cdc-and-insurance-coverage-of-vaccines-in-the-united-states\/\">Advisory Committee on Immunization Practices (ACIP)<\/a> delivered presentations and made decisions that could contribute to misconceptions about vaccine safety for children. One topic of discussion was the timing and necessity of the hepatitis B vaccine for newborns. ACIP voted to end the recommendation that all newborns receive the <a href=\"https:\/\/www.kff.org\/other-health\/new-kff-washington-post-poll-explores-parents-vaccine-attitudes-and-confusion-follows-acip-meeting-on-vaccine-recommendations\/#hepatitis-b\">hepatitis B vaccine<\/a> at birth, now recommending that parents of infants born to someone who tests negative should consult with their health care provider and decide when or if their child will be vaccinated against hepatitis B. KFF\u2019s monitoring of X, Reddit, and Bluesky identified more than 31,000 posts, reposts, and comments about hepatitis B on December 5, the day the committee voted on its recommendations, up from a daily average of about 3,200 thus far in 2025. The enhanced engagement on this issue can&nbsp;both&nbsp;<a href=\"https:\/\/www.kff.org\/health-information-trust\/from-margins-to-mainstream-how-amplification-may-be-giving-misinformation-new-reach\/\" target=\"_blank\" rel=\"noreferrer noopener\">amplify false claims as well as counter them<\/a>, and KFF will&nbsp;track&nbsp;whether&nbsp;discussion of hepatitis B vaccines remains widespread in the coming weeks.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The meeting also included a working group presentation about the safety of aluminum <a href=\"https:\/\/www.nature.com\/articles\/s41392-023-01557-7\">adjuvants<\/a> in vaccines, focusing on the cumulative impact of receiving multiple vaccines containing these adjuvants in a short time frame, despite these compounds having been used safely for <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC4494348\/\">nearly a century<\/a> to boost immune response. ACIP didn\u2019t vote on an action related to these adjuvants, but official scrutiny of vaccine ingredients that are supported by decades of safety data may contribute to <a href=\"https:\/\/www.kff.org\/health-information-trust\/kff-tracking-poll-on-health-information-and-trust-vaccine-safety-and-trust\/\">public uncertainty about vaccine safety<\/a>, potentially affecting vaccination rates even before formal policy changes. KFF will continue to monitor online reactions and vaccine narratives as news reports of the ACIP meeting spread.&nbsp;<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading has-heading-4-font-size\" id=\"autism-vaccines-webpage\">Update to CDC\u2019s Autism and Vaccines Webpage Could Contribute to Public Uncertainty<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">On November 19, the CDC <a href=\"https:\/\/www.npr.org\/sections\/shots-health-news\/2025\/11\/20\/nx-s1-5615040\/cdc-rfk-childhood-vaccines-autism\">updated<\/a> its \u201c<a href=\"https:\/\/www.cdc.gov\/vaccine-safety\/about\/autism.html\">Autism and Vaccines<\/a>\u201d webpage, replacing evidence-based statements about vaccine safety with misleading claims that studies cannot rule out a link between vaccines and autism. Before the update, the page stated that studies have shown no link between vaccines and autism, a conclusion supported by <a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0264410X14006367\">dozens of studies<\/a> examining hundreds of thousands of children worldwide. KFF\u2019s <a href=\"https:\/\/www.kff.org\/health-information-trust\/kff-tracking-poll-on-health-information-and-trust-the-publics-views-on-measles-outbreaks-and-misinformation\/\">Health Information and Trust Tracking Poll<\/a> has found that most of the public has heard the claim that MMR vaccines have been proven to cause autism, and while very few adults think this claim is definitely true, most express some uncertainty. News of the CDC\u2019s language change may <a href=\"https:\/\/www.kff.org\/quick-take\/a-cdc-website-change-may-contribute-to-the-publics-uncertainty-on-vaccines-and-autism\/\">exacerbate this uncertainty<\/a>, introducing ambiguity that online narratives <a href=\"https:\/\/www.kff.org\/health-information-trust\/new-vaccine-requirements-anti-mrna-narratives-and-disputed-gender-affirming-care-report\/\">can exploit<\/a>. Health communicators should be aware that shifts in official guidance can become focal points for narratives that frame prior statements as misleading, which may <a href=\"https:\/\/www.kff.org\/public-opinion\/kff-the-washington-post-survey-of-parents\/#c1001c76-8dd1-4230-8b89-58d04f9f1cba--h-parents-views-of-vaccine-safety-testing-schedule-and-spacing\">deepen skepticism<\/a> and contribute to <a href=\"https:\/\/www.kff.org\/medicaid\/kindergarten-routine-vaccination-rates-continue-to-decline\/\">declining vaccination rates<\/a>.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading has-heading-4-font-size\" id=\"trust-in-news\">Trust in News Organizations Continues to Decline<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">New Pew Research <a href=\"https:\/\/www.pewresearch.org\/short-reads\/2025\/10\/29\/how-americans-trust-in-information-from-news-organizations-and-social-media-sites-has-changed-over-time\/\">data<\/a> from late October shows that Americans\u2019 trust in information from national and local news organizations continues to decline, with 56% of U.S. adults saying they have at least some trust in information from national news organizations, down 11 percentage points since March 2025 and 20 points since 2016. Trust in local news organizations remains higher, at 70%, but has also dropped 10 percentage points since March. Adults under 30 are about as likely to trust information from national news organizations (51%) as they are to trust information from social media sites (50%). These declines in trust may affect how people seek and evaluate health information, particularly as younger audiences increasingly turn to social media platforms.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\" style=\"padding-top:0;padding-bottom:0\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\" style=\"margin-top:25px;margin-bottom:25px\" \/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-social-media-and-ai-policy-roundup\">Social Media and AI Policy Roundup<\/h2>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading has-heading-4-font-size\" id=\"government-social-media\">Senate Hearings Examine Government Pressure on Social Media Platforms<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The Senate Commerce Committee held a <a href=\"https:\/\/www.commerce.senate.gov\/2025\/10\/shut-your-app-how-uncle-sam-jawboned-big-tech-into-silencing-americans_2\">series of hearings<\/a> in October examining allegations that the Biden administration inappropriately pressured social media companies to remove content related to the COVID-19 pandemic. Lawmakers from both parties expressed concern about coercion, signaling that questions about the line between permissible government engagement and unconstitutional influence will remain central to content moderation debates. Meta and Google executives testified that while they faced pressure from Biden administration officials, they made independent decisions about content moderation. The hearing highlights continued scrutiny of how government communication influences platform content moderation decisions, echoing claims central to the 2024 Supreme Court case <a href=\"https:\/\/www.supremecourt.gov\/opinions\/23pdf\/23-411_3dq3.pdf\"><em>Murthy v. Missouri<\/em><\/a><em>.<\/em> Senator Ted Cruz has indicated plans to introduce legislation that he says would curtail such government pressures on private companies, but witnesses noted a need for such legislation to avoid limiting routine coordination between agencies and platforms on issues like safety or fraud.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading has-heading-4-font-size\" id=\"ai-regulations\">Draft Executive Order Challenging State AI Regulations Placed on Hold After Bipartisan Resistance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A <a href=\"https:\/\/www.cnbc.com\/2025\/11\/20\/trump-ai-executive-order-state-funding.html\">draft executive order<\/a> that would have pre-empted state regulations on artificial intelligence (AI) was <a href=\"https:\/\/www.reuters.com\/world\/white-house-pauses-executive-order-that-would-seek-preempt-state-laws-ai-sources-2025-11-21\/\">placed on hold<\/a> in late November after <a href=\"https:\/\/www.nbcnews.com\/tech\/tech-news\/steve-bannon-elizabeth-warren-bipartisan-backlash-erupts-push-block-st-rcna245040\">lawmakers from both political parties<\/a> expressed concern about the approach. The proposed order would have withheld federal broadband funding from states with such laws regulating AI and directed the U.S. Attorney General to challenge such laws. Industry leaders have <a href=\"https:\/\/cdn.openai.com\/global-affairs\/ostp-rfi\/ec680b75-d539-4653-b297-8bcf6e5f7686\/openai-response-ostp-nsf-rfi-notice-request-for-information-on-the-development-of-an-artificial-intelligence-ai-action-plan.pdf\">supported<\/a> federal efforts to pre-empt state laws, but the proposals have been criticized by elected officials from both parties who have said they would encroach on states\u2019 rights and limit their ability to address immediate harms while a federal regulatory framework is still being crafted. The White House has also signaled it is working with Republican lawmakers to include a moratorium on state AI laws in the <a href=\"https:\/\/punchbowl.news\/article\/tech\/house-ai-preemption-ndaa\/\">upcoming National Defense Authorization Act<\/a>, but similar efforts to include pre-emption in major legislation have failed; a 10-year moratorium was originally included in the One Big Beautiful Bill Act before <a href=\"https:\/\/www.nbcnews.com\/tech\/tech-news\/big-beautiful-bill-ai-moratorium-ted-cruz-pass-vote-rcna215111\">being struck from the law<\/a>.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading has-heading-4-font-size\" id=\"ai-scrapers\">Study Finds Misinformation Sites Welcome AI Scrapers While Reputable News Blocks Them<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Generative AI companies regularly crawl the Internet for data that can be used to train and improve their models. Website owners can <a href=\"https:\/\/developers.google.com\/search\/docs\/crawling-indexing\/robots\/intro\">limit<\/a> these web crawlers\u2019 ability to access their content, and many choose to do so as part of an effort to <a href=\"https:\/\/www.nytimes.com\/2023\/12\/27\/business\/media\/new-york-times-open-ai-microsoft-lawsuit.html\">protect copyrighted content<\/a>. A <a href=\"https:\/\/arxiv.org\/abs\/2510.10315\">study<\/a> analyzing over 4,000 websites, though, indicated that differences in how websites respond to AI web crawlers may impact information quality. Using categorizations provided by a <a href=\"https:\/\/mediabiasfactcheck.com\/\">third party<\/a>, the researchers found that 60% of \u201creputable news\u201d websites, like the Associated Press or The New York Times, block at least one AI crawler from accessing their content, compared to just 9.1% of \u201cmisinformation\u201d sites rated by the third party as having low or very low factual information, including Stormfront and Zerohedge. As reputable news organizations increasingly protect their content through litigation and technical blocks, AI models may have easier access to less reliable information sources. AI companies provide <a href=\"https:\/\/www.pcmag.com\/news\/google-openai-heavily-weight-news-content-in-ai-training-without-payment\">different weights to different content<\/a>, meaning that low-quality information may be filtered out, but users of AI chatbots should be aware that a disparity in training data could influence the quality and accuracy of the responses they receive.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\" style=\"padding-top:0;padding-bottom:0\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\" style=\"margin-top:25px;margin-bottom:25px\" \/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-featured\">Featured<\/h2>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading has-heading-4-font-size\" id=\"mifepristone\">KFF Poll Shows Fewer than Half of the Public Are Aware of Abortion Pill Mifepristone\u2019s Prevalence or Safety<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In September, Health and Human Services (HHS) Secretary Robert F. Kennedy Jr. and U.S. Food and Drug Administration (FDA) Commissioner Marty Makary <a href=\"https:\/\/democracyforward.org\/wp-content\/uploads\/2025\/09\/Fda_Hhs_Letter-1.pdf\">announced<\/a> the FDA would be reviewing the safety of the abortion pill mifepristone, which was first approved by the FDA <a href=\"https:\/\/www.kff.org\/womens-health-policy\/the-availability-and-use-of-medication-abortion\/#:~:text=The%20FDA%20first%20approved%20Mifeprex%20in%202000\">twenty-five years<\/a> ago and has a long and well documented <a href=\"https:\/\/www.fda.gov\/drugs\/postmarket-drug-safety-information-patients-and-providers\/questions-and-answers-mifepristone-medical-termination-pregnancy-through-ten-weeks-gestation\">safety<\/a> record.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">KFF\u2019s <a href=\"https:\/\/www.kff.org\/public-opinion\/kff-health-tracking-poll-knowledge-and-views-of-medication-abortion\/\">latest Health Tracking Poll<\/a> finds that about half (53%) of the public have heard of mifepristone, but many are unaware of how often the medication is used and are unaware of its established safety record. The public is largely unaware that <a href=\"https:\/\/www.guttmacher.org\/2024\/03\/medication-abortion-accounted-63-all-us-abortions-2023-increase-53-2020\">most abortions in the U.S. are done by taking abortion pills<\/a>, with about one in four (24%) adults correctly saying that most abortions in the U.S. are medication abortions, three in ten (29%) saying most abortions are done via medical procedure, and about half (47%) saying they\u2019re not sure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When it comes to safety, about four in ten (42%) adults say abortion pills are \u201cvery\u201d or \u201csomewhat safe\u201d when taken as directed by a doctor, about twice the share who say they are \u201cvery\u201d or \u201csomewhat unsafe\u201d (18%), while another four in ten say they are not sure. Views of the abortion pill\u2019s safety are similar among women ages 18 to 49. Perceptions of the pill\u2019s safety, however, differ dramatically by partisanship. While nearly two-thirds (63%) of Democrats and four in ten independents correctly say abortion pills are safe when taken as directed by a doctor, just a quarter (26%) of Republicans agree.<\/p>\n\n\n\n<div class=\"datawrapper-embed block--datawrapper-embed \">\n\t\t\t\t\t<div style=\"min-height: px;\">\n\t\t\t<script\n\t\t\t\ttype=\"text\/javascript\"\n\t\t\t\tdefer\n\t\t\t\tsrc=\"https:\/\/datawrapper.dwcdn.net\/eW5bV\/embed.js?v=14\"\n\t\t\t>\n\t\t\t<\/script>\n\t\t<\/div>\n\t\t\t<img\n\t\t\tclass=\"datawrapper-embed__print-img\"\n\t\t\tsrc=\"https:\/\/datawrapper.dwcdn.net\/eW5bV\/full.png\"\n\t\t\talt=\"Four in Ten Are Unsure About the Safety of Abortion Pills,\u00a0Including Nearly Four in Ten Women of Reproductive Age\"\n\t\t\/>\n<\/div>\n\n\n\n\n<p class=\"wp-block-paragraph\">Public perception of the abortion pill\u2019s safety has waned in the past few years, including among women of reproductive age. About four in ten (42%) adults now say abortion pills are safe when taken as directed compared to just over half (55%) who said the same in <a href=\"https:\/\/www.kff.org\/womens-health-policy\/kff-tracking-poll-may-2023\/\">May 2023<\/a>. Among women ages 18 to 49, fewer than half (41%) now view the abortion pill as safe, an 18-percentage point drop from 2023 when a majority (59%) said the pills were safe.<\/p>\n\n\n\n<div class=\"datawrapper-embed block--datawrapper-embed \">\n\t\t\t\t\t<div style=\"min-height: px;\">\n\t\t\t<script\n\t\t\t\ttype=\"text\/javascript\"\n\t\t\t\tdefer\n\t\t\t\tsrc=\"https:\/\/datawrapper.dwcdn.net\/WuwFJ\/embed.js?v=14\"\n\t\t\t>\n\t\t\t<\/script>\n\t\t<\/div>\n\t\t\t<img\n\t\t\tclass=\"datawrapper-embed__print-img\"\n\t\t\tsrc=\"https:\/\/datawrapper.dwcdn.net\/WuwFJ\/full.png\"\n\t\t\talt=\"Compared to Two Years Ago, Fewer U.S. Adults Say Abortion Pills Are Safe When Taken as Directed, Including Women of Reproductive Age\"\n\t\t\/>\n<\/div>\n\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:0;padding-bottom:0;padding-left:var(--wp--preset--spacing--40);flex-basis:290px\">\n<div class=\"wp-block-group wp-block-kff-sticky-menu is-layout-constrained wp-container-core-group-is-layout-899e6947 wp-block-group-is-layout-constrained wp-container-4 is-position-sticky wp-block-block\" style=\"padding-top:var(--wp--preset--spacing--60);padding-right:0;padding-bottom:var(--wp--preset--spacing--60);padding-left:0\">\n<p class=\"wp-block-paragraph\" style=\"margin-right:0;margin-left:0;padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><strong><strong>About The Health Information and Trust Initiativ<\/strong>e:<\/strong> the <a href=\"https:\/\/www.kff.org\/health-information-and-trust\/\">Health Information and Trust Initiative<\/a> is a KFF program aimed at tracking health misinformation in the U.S., analyzing its impact on the American people, and mobilizing media to address the problem. Our goal is to be of service to everyone working on health misinformation, strengthen efforts to counter misinformation, and build trust.&nbsp;<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\" style=\"margin-top:0px;margin-bottom:10px\"\/>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><a href=\"https:\/\/www.kff.org\/series\/the-monitor\/\">View all KFF Monitors<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.kff.org\/series\/the-monitor\/\"><img loading=\"lazy\" decoding=\"async\" height=\"576\" width=\"1024\" src=\"https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250715_The-Monitor_FI.png?w=1024\" alt=\"\" class=\"wp-image-682788\" srcset=\"https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250715_The-Monitor_FI.png 1920w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250715_The-Monitor_FI.png?resize=300,169 300w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250715_The-Monitor_FI.png?resize=768,432 768w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250715_The-Monitor_FI.png?resize=1024,576 1024w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250715_The-Monitor_FI.png?resize=1536,864 1536w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250715_The-Monitor_FI.png?resize=250,141 250w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250715_The-Monitor_FI.png?resize=500,282 500w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250715_The-Monitor_FI.png?resize=834,469 834w, https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/08\/250715_The-Monitor_FI.png?resize=1280,720 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The Monitor is a report from KFF\u2019s Health Information and Trust initiative that focuses on recent developments in health information. It\u2019s free and published twice a month.<\/p>\n\n\n\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-9fcd4b72 wp-block-group-is-layout-constrained\" style=\"background-color:#e6edf3;padding-top:var(--wp--preset--spacing--30);padding-right:0;padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--50)\">\n<p class=\"has-text-align-left wp-block-paragraph\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><a href=\"https:\/\/www.kff.org\/information-trust-email\/\">Sign up to<\/a> receive <strong>KFF Monitor<\/strong><br><strong> <\/strong>email updates<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex wp-block-block\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;flex-basis:900px\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"padding-top:var(--wp--preset--spacing--30);padding-bottom:0\"><em><em>Support for the Health Information and Trust initiative is provided by the Robert Wood Johnson Foundation (RWJF). The views expressed do not necessarily reflect the views of RWJF and KFF maintains full editorial control over all of its policy analysis, polling, and journalism activities. The data shared in the Monitor is sourced through <a href=\"https:\/\/www.kff.org\/the-monitor-methodology\/\">media monitoring research<\/a> conducted by KFF.<\/em><\/em><\/p>\n<\/div>\n<\/div>\n\n\t<div class=\"post-footer\">\n\t<div class=\"post-footer__title\">More On<\/div>\n\t<div class=\"post-footer__links\">\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kff.org\/topic\/health-information-trust\/\">\n\t\t\t\tHealth Information and Trust\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kff.org\/tag\/abortion\/\">\n\t\t\t\tAbortion\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kff.org\/tag\/artificial-intelligence\/\">\n\t\t\t\tArtificial Intelligence\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kff.org\/tag\/children\/\">\n\t\t\t\tChildren\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kff.org\/tag\/public-health\/\">\n\t\t\t\tPublic Health\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kff.org\/tag\/social-media\/\">\n\t\t\t\tSocial Media\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.kff.org\/tag\/vaccines\/\">\n\t\t\t\tVaccines\t\t\t<\/a>\n\t\t\t<\/div>\n<\/div>\n\t\t\t<\/div>\n\t<\/section>\n\n\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>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\u2019s safety and prevalence.<\/p>\n","protected":false},"author":155412913,"featured_media":699501,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"authors":[{"type":"foundation","id":573135,"name":"","_id":"cb634237-a417-413c-8827-94cb02bf3585"},{"type":"foundation","id":590048,"name":"","_id":"9451be8e-b1d6-4927-ad61-2ebf7f352f63"},{"type":"foundation","id":654938,"name":"","_id":"562e4bb0-db77-4d9d-b706-afa0ed1ea636"}],"exhibits":[],"jetpack_post_was_ever_published":false,"ep_exclude_from_search":false,"_classifai_error":"","_classifai_text_to_speech_error":"","hide_from_search":false,"show_featured_image":false,"subheading":"","tag":"","search_keywords":"10902","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"shortlink":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[579145376],"tags":[579144963,579145442,1343,28006,579145421,579145135],"content-types":[579145486],"series":[579145371],"program":[],"partner":[],"class_list":["post-699256","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health-information-trust","tag-abortion","tag-artificial-intelligence","tag-children","tag-public-health","tag-social-media","tag-vaccines","content-types-feature","series-the-monitor"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CDC Vaccine Panel Ends Universal Hepatitis B Recommendation and Reviews Aluminum in Vaccines, Plus Public Awareness of Mifepristone Safety \u2014 The Monitor | KFF<\/title>\n<meta name=\"description\" content=\"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\u2019s safety and prevalence.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kff.org\/health-information-trust\/cdc-vaccine-panel-ends-universal-hepatitis-b-recommendation-and-reviews-aluminum-in-vaccines-plus-public-awareness-of-mifepristone-safety\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CDC Vaccine Panel Ends Universal Hepatitis B Recommendation and Reviews Aluminum in Vaccines, Plus Public Awareness of Mifepristone Safety \u2014 The Monitor | KFF\" \/>\n<meta property=\"og:description\" content=\"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\u2019s safety and prevalence.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.kff.org\/health-information-trust\/cdc-vaccine-panel-ends-universal-hepatitis-b-recommendation-and-reviews-aluminum-in-vaccines-plus-public-awareness-of-mifepristone-safety\/\" \/>\n<meta property=\"og:site_name\" content=\"KFF\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-11T13:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-11T16:20:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.kff.org\/wp-content\/uploads\/sites\/7\/2025\/12\/251211_TheMonitor_FI.png\" \/>\n\t<meta property=\"og:image:width\" content=\"3840\" \/>\n\t<meta property=\"og:image:height\" content=\"2160\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"kffhagerey\" \/>\n<meta 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