Robert Koch Discovered the Pathogen That Causes Cholera

question 10

Multiple Choice

Robert Koch discovered the pathogen that causes cholera. How?

• A) He was looking for the bacteria that causes anthrax, and he happened to see another kind and was able to use it to infect mice with cholera.
• B) He was visiting India and a doctor there told him about it.
• C) He found it in the feces of cholera patients.
• D) He examined the soil on farms in Ireland.
• E) He became infected himself and found the bacteria in his blood.

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