Question

According to Koch’s first postulate

• A. The same disease causing agent must be isolated from experimentally infected animal
• B. The isolated causative agent of the disease must be able to produce disease when injected into healthy animal
• C. The causative agent of the disease must be present in every diseased animal
• D. The disease causing agent must be isolated from diseased animal and grown in pure culture

Hint:

While highly useful, Koch's postulates have limitations; for example, they cannot be fully applied to viruses or prions, which are obligate intracellular parasites that cannot be grown in cell-free pure culture.

Answer 1

The Correct Option is C