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If a patient was infected with methicillin-resistant Staphylococcus aureus (MRSA), what antibiotics could be used to...

  1. If a patient was infected with methicillin-resistant Staphylococcus aureus (MRSA), what antibiotics could be used to treat the infection? Describe the mechanism of action of one of the antibiotics used to treat MRSA (how does the antibiotic kill/inhibit the growth of MRSA?).


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Answer #1

Vanomycin is an antibiotic that can be used to cure MRSA infection.

Vanomycin inhibits cell wall synthesis of the MRSA, which stops them from growing and dividing properly. Their cell walls are made of sugars and crosslinked by short peptide chains. By binding to  D -alanyl- D -alanine groups on the end of the peptide chains, it stops the crosslinks forming. This prevents the bacteria from building its strong peptidoglycan network and as a result it Inhibits the growth of MRSA.

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