According to Koch's Postulates, in Order to Prove That Any

question 13

Multiple Choice

According to Koch's postulates, in order to prove that any given infectious agent causes a certain disease a scientist must satisfy all of the following requirements EXCEPT:

• A) the pathogen must be present in every case of the disease.
• B) the same pathogen must be reisolated in the diseased experimental host.
• C) the cultured pathogen must cause the disease when inoculated into a healthy and susceptible experimental host.
• D) the disease is caused by a combination of infectious pathogens and environmental factors.
• E) the pathogen must be cultured and isolated from every case of the disease.

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