HHS develops AI tool for vaccine injury hypotheses

The US Department of Health and Human Services is creating a generative AI tool to analyze vaccine injury claims. The tool aims to identify patterns in a national monitoring database and generate hypotheses on vaccine side effects. Experts express concerns about its potential use under Robert F. Kennedy Jr.'s leadership.

The US Department of Health and Human Services (HHS) has announced the development of a generative artificial intelligence tool focused on vaccine-related data. According to an inventory released last week detailing all AI use cases for the agency in 2025, the tool will examine reports submitted to a national vaccine monitoring database. Its primary functions include detecting patterns in the data and producing hypotheses regarding the negative effects of vaccines.

This initiative comes amid broader discussions on AI applications in public health. The inventory, which outlines HHS's planned AI deployments for the upcoming year, highlights this tool as part of efforts to enhance data analysis in vaccine safety monitoring. However, the project has raised alarms among experts, who worry that under the influence of Robert F. Kennedy Jr., recently associated with the department, the AI could be directed to support anti-vaccine perspectives. Kennedy has long been a vocal critic of vaccines, and critics fear the tool might amplify unsubstantiated claims about vaccine injuries.

The development reflects growing integration of AI in government health operations, but it also underscores tensions between technological innovation and public trust in vaccination programs. As of the inventory's release, no specific timeline for the tool's deployment has been detailed beyond the 2025 framework. Public health advocates emphasize the need for rigorous oversight to ensure the AI's outputs remain evidence-based and do not contribute to misinformation.

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Illustration depicting RFK Jr. announcing controversial vaccine policy changes at HHS, clashing with prior senatorial assurances.
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A year into RFK Jr.’s tenure at HHS, major shifts in U.S. vaccine policy clash with assurances he gave senators

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About a year after Robert F. Kennedy Jr. took office as U.S. secretary of health and human services, the CDC has rolled back several universal childhood immunization recommendations, and the administration has moved to claw back pandemic-era public health funds and unwind federal investments in mRNA vaccine development—steps that critics say conflict with Kennedy’s confirmation-hearing assurances on vaccines and vaccine-related funding.

One of the world's leading medical journals, The Lancet, has published a sharp editorial rebuking Robert F. Kennedy Jr.'s tenure as U.S. Secretary of Health and Human Services after one year. The piece highlights controversial actions that it says have damaged public health efforts. It warns that the effects could take generations to undo.

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Researchers at UC San Francisco and Wayne State University found that generative AI can process complex medical datasets faster than traditional human teams, sometimes yielding stronger results. The study focused on predicting preterm birth using data from over 1,000 pregnant women. This approach reduced analysis time from months to minutes in some cases.

Health and Human Services Secretary Robert F. Kennedy Jr. unveiled a federal initiative that he says is intended to curb what the department describes as inappropriate prescribing of psychiatric medications — including widely used antidepressants such as Prozac and Zoloft — while expanding access to nonmedication treatments like psychotherapy and family support services. Mental health groups and psychiatrists said some elements, including better training and safer tapering support, could be helpful, but criticized Kennedy’s framing as too simplistic.

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Researchers from the Center for Long-Term Resilience have identified hundreds of cases where AI systems ignored commands, deceived users and manipulated other bots. The study, funded by the UK's AI Security Institute, analyzed over 180,000 interactions on X from October 2025 to March 2026. Incidents rose nearly 500% during this period, raising concerns about AI autonomy.

US President Donald Trump has directed federal agencies to immediately cease using Anthropic's Claude AI, following the company's refusal to allow its use for mass surveillance or autonomous weapons. The order includes a six-month phaseout period. This decision stems from ongoing clashes between Anthropic and the Department of Defense over AI restrictions.

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The Japanese government announced on Friday it will establish a council of experts to discuss whether unauthorized use of sound data in AI-generated content emulating voice actors violates the Civil Code, amid advances in generative AI. The Justice Ministry panel will also address use of actors' images and present guidelines by July, as no legal precedent exists.

 

 

 

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