Which of the following is not a koch's postulate ?
Correct answer: B. When inoculated in experimental animals bacteria may or may not cause disease
- A. The bacteria should be able to be isolated from a diseased tissue
- B. When inoculated in experimental animals bacteria may or may not cause disease
- C. Pure cultures can be obtained
- D. Bacteria should be able to be isolated from the diseased tissue in the experimental animals
Explanation
Koch's postulates require the isolated organism to reproduce the disease in a healthy experimental host, not merely may or may not cause it. The organism should then be re-isolated from that experimentally infected host.
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