Explore the science behind NIH's mission.

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NIH Research Priorities

Explore the cross-cutting scientific themes and strategic priorities guiding NIH investments — from basic science to translational breakthroughs.

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PubMed

Search more than 37 million citations for biomedical literature from MEDLINE, life science journals, and online books. 

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NLM (National Library of Medicine)

Access the world's largest biomedical library — including MedlinePlus, ClinicalTrials.gov, and NIH's data science resources.

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Resources

Find research tools, reagents, model organisms, instrumentation, and NIH-supported scientific infrastructure available to the broader research community. 

 

Spotlight

NIH-supported trial reduces HIV incidence by 70% in high-risk populations

A landmark NIH-funded clinical trial has demonstrated that a long-acting injectable antiretroviral regimen reduced new HIV infections by more than 70% compared to standard oral pre-exposure prophylaxis (PrEP). The findings represent one of the most significant advances in HIV prevention in over a decade and may reshape global prevention guidelines. The study enrolled more than 5,000 participants across 12 countries.

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Grants for Research

Find funding opportunities, understand NIH grant mechanisms, and access application guidance — all in one place.

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Clinical Research and Trials

Learn how NIH translates scientific discoveries into clinical practice through trials, the NIH Clinical Center, and patient recruitment resources. 

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Data Repositories

Access controlled and open-access genomic, imaging, and biomedical datasets through NIH-managed repositories and data-sharing platforms. 

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Cancer Research

Explore NCI's comprehensive cancer research portfolio — from basic biology to prevention, early detection, and treatment clinical trials.

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Rare Disease Research

Discover NIH's investments in rare and neglected diseases through NCATS, GARD, and the NIH Undiagnosed Diseases Network. 

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Research Computing & AI

Learn how NIH is harnessing artificial intelligence, cloud computing, and data science to accelerate biomedical discovery.