Question Detail
Question
Which of the following is not true about Koch's postulates?
Correct Answer
Option D is the correct answer.
Detailed Explanation
One of Koch's postulates states that the same pathogen must be re-isolated from the experimentally diseased host. Therefore, the statement 'The pathogen must not be re-isolated from the new host' is incorrect.
Hint
Recall the four main points of Koch's postulates. What happens to the pathogen after it infects a new host and causes disease?