Multiple Choice
Methicillin-resistant Staphylococcus aureus (MRSA) has developed resistance to all ?β-lactams by what mechanism?
A) Nonreactive receptor on the bacterial cell surface that binds the antibiotic
B) Destruction of the β-lactam ring upon attachment to the mutated receptor
C) Mutated protein that acts to hydrolyze β-lactams?
D) Acquisition onto the penicillin-binding site of a novel protein called PBP2a.
Correct Answer:
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