Which agency is the primary U.S. federal agency for biomedical and public health research and the world's largest public funder of medical research?

• A. Centers for Disease Control and Prevention (CDC)
• B. Department of Health and Human Services
• C. National Institutes of Health (NIH)
• D. Environmental Protection Agency (EPA)

Answer: (C)

The National Institutes of Health is the primary U.S. federal agency for biomedical and public health research and the world's largest public funder of medical research. It coordinates and supports a broad research portfolio, funding thousands of studies across universities and research institutions through grants while also conducting its own intramural research. Because of its substantial annual budget and wide scope, NIH drives advances in vaccines, treatments, and our understanding of health and disease. It sits within the Department of Health and Human Services, which is the larger umbrella, but NIH itself is the main driver of biomedical research funding. The other options play important roles in public health or environmental protection, but they are not the primary funders of biomedical research.