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Author Question: Within six months of effectively using methicillin to treat S. aureus infections (Read 2001 times)

hummingbird

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on: Jul 7, 2013
Within six months of effectively using methicillin to treat S. aureus infections in a community, all new infections were caused by MRSA. How can this result best be explained?
A) S. aureus can resist vaccines.
B) A patient must have become infected with MRSA from another community.
C) In response to the drug, S. aureus began making drug-resistant versions of the protein targeted by the drug.
D) Some drug-resistant bacteria were present at the start of treatment, and natural selection increased their frequency.
E) The drug caused the S. aureus DNA to change.


camila

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Reply #1 on: Jul 9, 2013
Hello

D is the answer for sure ;)


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hummingbird

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Reply #2 on: Aug 1, 2013
Thank you Thank you Thank you :D


jordangronback

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Reply #3 on: Feb 18, 2015
Thank you!


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