Epidemiologists use various methods to identify health hazards. These include:
Surveillance: Continuous monitoring of health data to detect emerging threats. Epidemiological studies: Research designs like cohort, case-control, and cross-sectional studies to investigate associations between exposures and health outcomes. Field investigations: On-the-ground studies to identify the source and extent of health hazards. Laboratory testing: Analyzing biological samples to detect pathogens, toxins, or genetic markers.