Page 296 - New Medley 5 Semester 1

Bacteria causing Bacteria causing
cholera tuberculosis

Bacteria causing
tetanus

Bacteria causing Bacteria causing
typhoid pneumonia
Different types of disease-causing bacteria
Some common diseases such as cholera, measles, malaria, etc. are caused by

different microorganisms.
Diseases Caused by Microorganisms

Microorganisms Diseases

Bacteria Cholera, typhoid, tuberculosis, tetanus, pneumonia, gastroenteritis,
diphtheria, whooping cough

Viruses Measles, AIDS, common cold, viral fever, polio, conjunctivitis,
chickenpox, dengue, meningitis, COVID-19

Protozoa Malaria, dysentery, sleeping sickness

Fungi Ringworm, food poisoning, athlete’s foot

Types of Diseases

There are following two types of diseases:
 Communicable or infectious diseases

 Non-communicable or non-infectious diseases

Communicable or Infectious Diseases

The diseases which spread from one person to another are called communicable
or infectious diseases.

Knowledge Zone
1. World organisations like WHO (World Health Organisation) keep track of diseases around
the world. They advise and help people in different parts of the world.
2. Young children are more susceptible to cold as compared to adults.

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