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 people in the United States. To accomplish its mission, the CDC
-identifies and defines preventable health problems;
-maintains active surveillance of diseases through epidemiologic and laboratory investigations and data collection, analysis, and distribution;
-serves as the Public Health Service lead agency in developing and implementing operational programs relating to environmental health problems;
-conducts operational research aimed at developing and testing effective disease prevention, control, and health promotion programs;
-administers a national program to develop recommended occupational safety and health standards and to conduct research, training, and technical assistance to assure safe and healthful working conditions for every working person;
-develops and implements a program to sustain a strong national workforce in disease prevention and control; and
-conducts a national program for improving the performance of clinical laboratories.