Leavell and clarks three level of prevention

The terms primary, secondary and tertiary prevention were first documented in the late s by Hugh Leavell and E. Guerney Clark from the Harvard and Columbia University Schools of Public Health, respectively.

Leavell and clarks three level of prevention

Pioneers in Public Healththinking at that time, Leavell and Clark described the principles of prevention withinthe context of the Public Health triad of Host, Agent and Environment commonlyreferred to as the epidemiologic triangle model of Causation of diseases.

Primary Prevention

Seeks to prevent a disease or condition at a pre-pathologic state; to stop something from ever happening.

Primary prevention strategies emphasize general health promotion, risk factor reduction, and other health protective measures. These strategies include health education and health promotion programs designed to foster healthier lifestyles and environmental health programs designed to improve environmental quality.

Secondary Prevention

Secondary prevention focuses on indivi