MRSA | Health | Patient- Handhygieneanleitung mrsa ,Dec 02, 2016·What is MRSA? MRSA stands for meticillin-resistant Staphylococcus aureus.It is sometimes known as a superbug. There are various strains (subtypes) of S. aureus and some strains are classed as MRSA. MRSA strains are very similar to any other strain of S. aureus.That is, some healthy people are carriers and some people develop the types of infections described above.