CONCEPT OF PREVENTION OF DISEASE  Actions aimed at eradicating, eliminating, or minimizing the impact of disease and disability.  The concept of prevention is best defined in the context of levels, traditionally called primary, secondary, and tertiary prevention”

1. CONCEPT OF PREVENTION OF DISEASE
 Actions aimed at eradicating, eliminating, or minimizing the impact of disease and
disability.
 The concept of prevention is best defined in the context of levels, traditionally called
primary, secondary, and tertiary prevention”
LEVEL OF PREVENTION:
PRIMORDIAL PREVENTION
 Primordial prevention consists of actions and measures that inhibit the emergence of risk
factors in population groups in which they have not yet appeared.
 For example, many adult health problems (e.g., obesity, hypertension) have their early
origins in childhood, because this is the time when lifestyles are formed (for example,
smoking, eating patterns, physical exercise).
 In primordial prevention, efforts are directed towards discouraging children from adopting
harmful lifestyles.
 The main intervention in primordial prevention is through individual and mass
education.
PRIMARY PREVENTION
Primary prevention can be defined as the action taken prior to the onset of disease, which
removes the possibility that the disease will ever occur. The following approaches for primary
prevention of chronic disease have been recommended by WHO:
i. Population (mass) Strategy
ii. High risk Strategy

2. The WHO has recommended the following approaches for the primary prevention of chronic
diseases where the risk factors are established:
1. Population (mass) strategy
2. High -risk strategy
POPULATION STRATEGY:
Population strategy" is directed at the whole population irrespective of individual risk levels.
 For example, studies have shown that even a small reduction in the average blood
pressure or serum cholesterol of a population would produce a large reduction in the
incidence of cardiovascular disease.
HIGH -RISK STRATEGY:
The high -risk strategy aims to bring preventive care to individuals at special risk.
MODE OF PRIMARY INTERVENTION
Health Education-
 Information about all communicable & non- communicable disease.
 AIDS
 CVS (Cardiovascular disease)
 Sexual Education.

3. Environment intervention:
 Provision of Safe drinking water and water supply.
 Proper sanitary
 Disposal of human & animal excreta.
 Control on insects & rodents.
Nutritional intervention:
 Improving food distribution
 Child feeding programme
 Nutrition education
Life Style & behavioral intervention:
 Improving personal Hygiene
 Avoiding Alcohol, smoking and drug abuse.
 Family planning
 Health legislation
SECONDARY PREVENTION
 It is defined as “action which halts the progress of a disease at its incipient stage and
prevents complications. The secondary prevention also includes the preventive measures
to protect the healthy person from acquiring the infection.
 The specific interventions are: early diagnosis (e.g. screening tests, and case finding
program) and adequate treatment.
 Secondary prevention attempts to arrest the disease process, restore health by seeking out
unrecognized disease and treating it before irreversible pathological changes take place.
 It may be an important tool in the control of transmission of disease.
MODE OF SECONDARY INTERVENTION
Early diagnosis & Treatment:
 Individual & Mass case finding
 Screening & Surveys
 Periodic examination
 Special examination of people at risk.
* A periodic health examination is an evaluation of your overall health status during which your doctor
will evaluate your body, organs, and their functioning.
The earlier diagnosis of disease may be helpful for the better treatment from the point of view of
prognosis and preventing the spread of disease or any long term disability.
TERTIARY PREVENTION
 It is used when the disease process has advanced beyond its early stages.
 It is defined as “all the measures available to reduce or limit impairments and disabilities,
and to promote the patients’ adjustment to irremediable conditions.”
 Intervention that should be accomplished in the stage of tertiary prevention are disability
limitation, and rehabilitation.

4. MODE OF TERTIARY INTERVENTION
Disability Intervention:
This mode of intervention is taken in the stage of late pathogenesis. It prevent complication &
also prevents or postpones death. Disability can be prevented by:-
 Reducing the occurrences of impartment
 Appropriate treatment
 Preventing the disability to handicap
Disease Impairment Disability Handicap
Rehabilitation:
 Rehabilitation is defined as “the combined and coordinated use of medical, social,
educational, and vocational measures for training and retraining the individual to the
highest possible level of functional ability.”
 Rehabilitation is a treatment designed to facilitate the process of recovery from injury,
illness, or disease to as normal a condition as possible.
Medical Rehabilitation: Restore the function. Help a person better in all his daily physical and
mental activities. Related to increasing the potential capabilities and correction of deformities,
restoration of functions

5. Vocational Rehabilitation: Help those patient who find it difficulty to get employment.
Social Rehabilitation:
Implies social life; restoration of family, social interactions or relationship.
Psychological Rehabilitation:
Includes psychological restoration of personal dignity and confidence of the disabled.