Disease Causation Theories

Question 1

List the Disease Causation Theories.

Answer 1

•Germ Theory
•Epidemiological Triad
•Multifactorial Causation Theory
•Web of Causation Theory
•Dever’s epidemiological Model
•BEINGS Theory

Question 2

Discuss the Germ Theory

Answer 2

Theory states that many diseases are caused by the presence and actions of specific microorganisms within the body.(virus,bacteria,fungi)
Germ theory led to practices like vaccination, sanitation and use of antibiotics.

Question 3

Discuss the epidemiological triad

Answer 3

States that everyone exposed to the disease agent does not contract the disease.It emphasizes that the causative agent is not the sole responsible for disease but there are other factors related to man and the environment which contribute to disease.
Agent refers to the Infectious thing which causes a disease.(bacteria,virus)
Host refers to the receiver of the agent.(human being)
Environment includes water,food,air.

Question 4

Discuss the multifactorial causation theory.

Answer 4

Suggests that diseases and health conditions are caused by a combination of factors rather than a single isolated cause.
Factors include genetics,diet, exercise,stress and Environmental exposures.