Epidemiologists use various types of data, including but not limited to:
1. Surveillance Data: Continuous collection, analysis, and interpretation of health-related data. 2. Clinical Data: Information from healthcare providers such as hospitals and clinics. 3. Behavioral Data: Data on lifestyle and behavior patterns that may influence health. 4. Environmental Data: Data on factors like pollution levels, climate, and exposure to hazardous substances. 5. Genetic Data: Information on genetic factors that may predispose individuals to certain diseases.