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Koch's postulates are not applicable to...

Koch's postulates are not applicable to

A

cholera

B

leprosy

C

TB

D

diphtheria

Text Solution

Verified by Experts

The correct Answer is:
B
To apply Koch's postulates, we have to culture the suspected causal organism in vitro. Mycobacterium leprae cannot be cultured in vitro. Hence, Koch's postulates are not applicable to leprosy because its incubation period is 2-5 years. Cholera i.s caused by Vibrio cholerae. TB is caused by Mycobacterium tuberculosis. Diphtheria is caused by Mycobacterium diphtheriae.
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