Question Detail

MIC 121 MIC 121 Test compilation 5 Objective Question

Question

Which of the following statements is NOT true about Koch's postulates?
Options
A The specific pathogen must be isolated from a diseased host and grown in pure culture.
B The pathogen must be present in all cases of the disease.
C The pathogen from the pure culture must cause the disease when inoculated into a healthy, susceptible host.
D The pathogen must not be re-isolated from the new host.
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

One of Koch's postulates states that the microorganism must be re-isolated from the inoculated, diseased experimental host and identified as being identical to the original specific causative agent. Therefore, the statement 'The pathogen must not be re-isolated from the new host' is false.

Hint

Remember the final step of Koch's postulates regarding re-isolation of the pathogen.

Question Info