Microbiology Question:
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A person who has a normal healthy immune system acquires a new strain of E. coli that now lives in his gastrointestinal tract. This individual is not ill. A second person with an acute leukemia and no white blood cells acquires the same organism, develops diarrhea followed by hypotension, bacteremia, sepsis, and death. This organism is?

Microbiology Interview Question
Microbiology Interview Question

Answer:

* A. Normal flora for both individuals
* B. A pathogen for both individuals
* C. An opportunistic pathogen for both individuals
* D. One with a low degree of virulence

Correct Answer: D

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