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‘HEALTH IS WEALTH’ . Health is wealth as this well known
Adage says good health considered to be
The greatest wealth. In living things diseases are caused by various factors.
IN this unit you will learn the following;
1.Nature and cause of diseases .
2. Immunisation.
3. Importance of Hygiene.
.
When the human body lacks adequate nourishment, it becomes weak and is
Easily susceptible to infectious diseases. To
Protect ourselves from infections, we should
Get vaccinated.This preventive measure is
Known as immunisation.
The majority of the diseases are caused
By virus & bactriea, which are called pathogens. Diseases like cholera, plague,
I
1.PRIMARY IMMUNISATION :
The administration of one or more
Than one type of vaccine by injecting it
Into body, to create the necessary resistance
Is called primary immunisation.
2. SECONDARY IMMUNISATION:
By administering the vaccine again,
A short time after the primary immunisation,
Permanent resistance is developed. This is
Called secondary immunisation.
The combined effect of the well being of mind,
Body and society is total health such a health human being performs his daily duties exceedingly
Well. His relationship with his family and his interaction
With society will be harmonious.
A person can lead a healthy life only when he
Keeps his food, clothes, shelter and the surroundings
Clean.