![](img005.GIF) |
The principle of Epidemiology is the
increased understanding of all aspects of any health-related event with an ultimate goal
to improve the quality of life. Epidemiology has succeeded in realizing that for any
health-related event there are modifiable risk factors and/or causes. The challenge in
epidemiology was to promote the role of prevention in medicine in two main directions.
First, early detection and treatment of diseases to help in reducing the clinical
manifestations and mortality among diseased individuals. Second, early detection and
intervention for risk factors to help in reducing disease incidence among healthy
individuals. Screening was the tool used by epidemiologists in this respect. |