Question

Which of the following statements given below is correct about Koch’s postulates?

(a) The organism may or may not be found in the body of the animal that is suffering from the disease
(b) The organism must be isolated and grown in pure culture on a natural medium only
(c) The same disease must be produced when the cultured organisms are injected into other healthy animals
(d) The same disease must be produced when the cultured organisms are injected into other healthy animals

Choose the correct option:

• A. a and c
• B. b and c
• C. c and d
• D. a and d

Answer 1

The correct option is C c and d

Robert Koch was a German microbiologist. He discovered that a large number of microorganisms cause diseases in human body.
His postulates were as follows:

• The organism must be regularly found in the body of the animal that is suffering from the disease.
• The organism must be isolated and grow in pure culture on an artificial medium.
• The same disease must be produced when the cultured organisms are injected into other healthy animals.
• The same organism must be recovered from injected animals.

Considering Koach’s postulates, options ‘c’ and ‘d’ are correct.