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‘HEALTH IS WEALTH’
Health is wealth as this well
.
Adage says good health considered
known
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
Called
secondary
is developed. This is
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.