INDEX
Sl no. Content Pg
No.
1. Introduction on
diseases
2. All About Cancer
3. Cases of cancer
worldwide
4. Cases of cancer
in India
5. Biblography
, INTRODUCTION
A disease is a condition of the body or a part of it in which
functions are disturbed or arranged. Diseases may also be defined
as morphological , physiological, psychological disturbance in the
body or body parts caused by some external agencies which may
be non-parasitic e.g. deficiency of nutrients or may be parasitic
caused by causes, bacteria , fungi etc. The term disease means
DIS-EASE or discomfort. In short it can be defined as 'disease is
disorder of body.
SOURCE OF DISEASES:
a) Air: It is reservoir of pathogens of many diseases like,
measles, mumps, tuberculosis, diphtheria etc.
b)Food and Water: These are reservoir of pathogens of many
diseases like, cholera, polio, typhoid, roundworm, tapeworm
etc.
c) Soil: It is a reservoir of pathogen of tetanus diseases.
d)Animals: These are those living organisms which spread the
pathogens from an infected person of healthy person. These
do not suffer from the diseases are also called reservoir host.
TYPES OF DISEASES:
Diseases are broadly classified into two categories:
A. CONGENITAL DISEASES: Diseases present since birth and
are caused due to defective development of inheritance e.g.
congenital heart diseases, hemophilia, color blindness etc.
B. AQUIRED DISEASES: Diseases developed after birth. They
are further classified as- Communicable diseases and Non-
Communicable diseases
Sl no. Content Pg
No.
1. Introduction on
diseases
2. All About Cancer
3. Cases of cancer
worldwide
4. Cases of cancer
in India
5. Biblography
, INTRODUCTION
A disease is a condition of the body or a part of it in which
functions are disturbed or arranged. Diseases may also be defined
as morphological , physiological, psychological disturbance in the
body or body parts caused by some external agencies which may
be non-parasitic e.g. deficiency of nutrients or may be parasitic
caused by causes, bacteria , fungi etc. The term disease means
DIS-EASE or discomfort. In short it can be defined as 'disease is
disorder of body.
SOURCE OF DISEASES:
a) Air: It is reservoir of pathogens of many diseases like,
measles, mumps, tuberculosis, diphtheria etc.
b)Food and Water: These are reservoir of pathogens of many
diseases like, cholera, polio, typhoid, roundworm, tapeworm
etc.
c) Soil: It is a reservoir of pathogen of tetanus diseases.
d)Animals: These are those living organisms which spread the
pathogens from an infected person of healthy person. These
do not suffer from the diseases are also called reservoir host.
TYPES OF DISEASES:
Diseases are broadly classified into two categories:
A. CONGENITAL DISEASES: Diseases present since birth and
are caused due to defective development of inheritance e.g.
congenital heart diseases, hemophilia, color blindness etc.
B. AQUIRED DISEASES: Diseases developed after birth. They
are further classified as- Communicable diseases and Non-
Communicable diseases
