Confidence votes 52.7K. The CDC (Centers for Disease Control and Prevention) is an agency of the US federal government and is headquartered near Atlanta, Georgia. It focuses on the prevention of diseases and the promotion of health through research and through investigation of disease clusters and outbreaks. The Centers for Disease Control and Prevention (CDC) serves as the national focus for. developing and applying disease prevention and control, environmental health, and health promotion and health education activities designed to improve the health of the people of the United States.