MRSA

Methicillin Resistant Staphylococcus aureus

Electron micrograph of MRSA Methicillin-resistant Staphylococcus aureus (MRSA) is a specific strain of the Staphylococcus aureus bacterium that has developed antibiotic resistance to all penicillins, including methicillin and other narrow-spectrum β-lactamase-resistant penicillin antibiotics.[1] MRSA was first discovered in the UK in 1961 and is now widespread, particularly in the hospital setting where it is commonly termed a superbug. MRSA may also be known as oxacillin-resistant St ...