| A | B |
| World Health Organization | International agency which collects statistics and information on diseases. Also investigates serious health problems around the world |
| United States Department of Health and Human Services | Deals with health problems across the United States |
| National Institutes of Health | Involved in research on disease |
| Center for Disease Control & Prevention | Concerned with spread, cause, and control of disease in populations |
| Food & Drug Administration | Regulates food and drug products sold to the public in the United States |
| Agency for Health Care Policy & Research | Researches the quality of health care delivery |
| Occupational Safety & Health Administration | establishes and enforces standards that protect workers from job-related injuries and illness |
| United Nations | Promote international co-operation |
| Health Department | Provide specific services needed by state or local community. Performs inspections for environmental health and sanitation |