By Big Cities Health Coalition and Council of State and Territorial Epidemiologists staff
An expert scientist who studies, detects and tracks injuries and disease in our communities.
Epidemiologists serve on the front lines of public health, protecting Americans and the global community. When health threats emerge, these “disease detectives” investigate. They identify the causes, factors and patterns associated with illness, determine who is at risk, collect evidence to recommend preventive actions, and rapidly implement control measures. Epidemiologists also respond to major health hazards including emerging threats such as Zika and Ebola, as well as natural disasters such as floods and hurricanes. They also work on chronic issues facing communities including obesity, diabetes, cancer, HIV/AIDS and motor vehicle crashes.