Why Might It Be Easier to Identify the Bacterium That

question 29

Multiple Choice

Why might it be easier to identify the bacterium that caused pneumonia than one that caused a wound infection?

• A) There are very few microorganisms that can cause pneumonia, while there are many that can cause wound infections, including normal microbiota and a variety of environmental organisms.
• B) Bacteria that cause pneumonia can be identified with few tests because the lungs have no normal microbiota. Many bacteria are normally found on the skin however; these may be in the wound, complicating identification.
• C) We have much better tests for bacteria in the lungs than we do for bacteria on the skin which may be the causative agents of wounds infection.
• D) The techniques of 16S rRNA sequencing are easier to perform on a sample taken from the lungs than a sample taken from a wound, because it is easier to get a sputum sample than it is a wound sample.
• E) Very few people actually get pneumonia, so tests are quick and easy to carry out; on the other hand, many people get very serious wound infections, so the tests are more complicated.

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