The Centers for Disease Control and Prevention (CDC) is a United States federal agency under the Department of Health and Human Services headquartered in Druid Hills, unincorporated DeKalb County, Georgia, in Greater Atlanta. It works to protect public health and safety by providing information to enhance health decisions, and it promotes health through partnerships with state health departments and other organizations. The CDC focus national attention on developing and applying disease prevention and control (especially infectious diseases and food borne pathogens and other microbial infections), environmental health, occupational safety and health, health promotion, injury prevention and education activities designed to improve the health of the people of the United States. The CDC is the United States' national public health institute and is a founding member of the International Association of National Public Health Institutes.