why is MRSA called methicillin resistant s. aureus?
Does this mean it is only resistant to methicillin? If so why is it such a huge deal?
Do all "xxx-cillin" antibiotics contain methicillin?
MRSA is so named for historical reasons - methicillin is one of the first-generation penicillins that was used in the 1950s and 60s, and case reports of Staphylococcal species resistant to methicillin started emerging in the 60s. The name stuck but our antibiotics moved on.