The Centers for Disease Control and Prevention (CDC) is the national public health institute of the United States. The CDC is a federal agency under the Department of Health and Human Services and is headquartered in Druid Hills, unincorporated DeKalb County, Georgia, in Greater Atlanta. Its main goal is to protect public health and safety through the control and prevention of disease, injury, and disability. The CDC focuses national attention on developing and applying disease control and prevention. It especially focuses its attention on infectious disease, food borne pathogens, environmental health, occupational safety and health, health promotion, injury prevention and educational activities designed to improve the health of United States citizens.