Preventive measures in epidemiology are strategies and actions designed to prevent the onset and spread of diseases among populations. These measures can be categorized into primary, secondary, and tertiary prevention. Primary prevention aims to reduce the incidence of disease by addressing risk factors before the disease occurs. Secondary prevention seeks to detect and treat disease in its early stages to halt its progression. Tertiary prevention focuses on reducing the impact of an already established disease by restoring function and reducing complications.
