What Is The Meaning Of Communicable Disease?

What Does Communicable Disease Mean? - Introduction, Concept And Meaning | Discuss Briefly Some Importance Communicable Diseases And Infectious Agents - www.pupilstutor.com

What Is The Meaning Of Communicable Disease?

What Is Communicable Disease?

In ancient times, people were not sufficiently aware of diseases. Hippocrates the father of medicine was the first physician of Greece, who described the symptoms of diseases in detail.

After a long gap, Robert Koch a German scientist studied the various causes of diseases and concluded that diseases spread through germs.


Since then, medical scientists are engaged in research work but we are still often attacked by new diseases.

  • The environment in which we live has a vital influence on us in spite of many scientific achievements.
  • We live in a highly competitive world where the struggle for survival is acute.
  • Our internal environment is persistently under the influence of external forces of nature.

Diseases that can be passed or transmitted from one person to another are called- infectious or contagious diseases.

  • Infectious disease is “disease of man resulting from an infection”.
  • A contagious disease is “one that is transmitted through direct contact”.

A disease of infectious nature can be transmitted from one person to another or from a reservoir to a susceptible host, directly (or) indirectly is called a communicable disease.


The infectious agents maybe

  • Virus,
  • Bacteria,
  • Protozoa,
  • Fungi,
  • Rickets Etc.

This disease may be directly or indirectly transmitted from

  • Man to Man,
  • Animal to Animal,
  • From the environment like through air, dust, soil water, food, insects, etc. to man and to animal.

Some Communicable Diseases Are

Air Borne Diseases

Water & Food Borne Diseases

Through Direct Contact

Through Insects


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