Question Detail

MIC 121 Introductory Microbiology Objective Question

According to Robert Koch's Postulates, what is the FIRST requirement to establish that a specific microorganism causes a disease?

A The pathogen must cause the disease when inoculated into a healthy host.

B The specific pathogen must be isolated from diseased host and grown in pure culture.

C The microorganism or pathogen must be present in all cases of the disease.

Correct Answer

D The pathogen must be reisolated from the new host.

Option C is the correct answer.

Koch's Postulates are listed in order. The first postulate states: 'A. The microorganism or pathogen must be present in all cases of the disease.'

Think about the initial observation required when investigating a disease caused by a microorganism.

Course: MIC 121

Topic: Introductory Microbiology

Type: Objective

Difficulty: Not specified

Question 187 of 984

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