Which one of the following is not a part of Koch‘s postulates? a. The microorganism must be isolated from a dead animal and pure cultured b. The microorganism and disease can be identified from a mixed culture c. The pure cultured organism is inoculated into a healthy susceptible animal. d. The same microorganism must be present in every case of the disease.

Which one of the following is not a part of Koch‘s postulates? a. The microorganism must be isolated from a dead animal and pure cultured b. The microorganism and disease can be identified from a mixed culture c. The pure cultured organism is inoculated into a healthy susceptible animal. d. The same microorganism must be present in every case of the disease.
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Answer :

d. The same microorganism must be present in every case of
the disease.
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