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Concept of health and disease

Disease and injury prevention and control

Prevention

• Includes individual, clinical, or personal health services such as

immunizations, screening for high blood pressure and follow-up

services, or the use of Pap smears to detect the precursors cervix

cancer.

Protection

• Includes the activities of organizations, both public and private, to

reduce exposure to hazards such as polluted water, contaminated

food, traffic accidents, mosquitoes, or use of electric saws without

safety devices

Control:

The control aimed at reducing:

1. The incidence of disease

2. The duration of disease and the risk of transmission

3. The effects of infection, including both the physical and

psychosocial complication

4. The financial burden to the community

Spectrum of health:

• Health is a relativelyىبسن, not an absolute concept-always involves

many levels or degrees

Health and disease lie a long continuum fig (1) and there is

no single cut off point. The lowest point on the health- disease

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