NIH is the largest funder of cancer research. Here's how the Trump administration cuts could impact patients.

As the Trump administration makes major cuts to federal health agencies, including the National Institutes of Health, cancer patients and doctors are worried about stalls in research and medicine that could affect treatments.

The NIH is the world's leading medical research agency and largest funder of cancer research, providing about $8 billion in cancer science funding annually.

About 1,200 jobs are expected to be cut at NIH as part of the layoffs at the Health and Human Services Department and the administration also has canceled hundreds of NIH grants to scientists around the country. Across HHS, nearly a quarter of staff, or 20,000 people, is expected to be laid off or take early retirement or voluntary separation offers.