New Zealand DermNet information about the skin: "Where is MRSA found?
MRSA is found worldwide, predominantly in hospitals and institutions such as nursing homes. Much less commonly, MRSA is found in the general community. There are three main reservoirs (and hence sources of spread and infection) for MRSA in hospital and institutions: staff, patients and inanimate objects such as beds, linen and utensils. By far the most important reservoir is patients who may be colonised with MRSA without evidence of infection. The usual sites of colonisation with MRSA are the nostrils, skin, groin, axilla, and wounds. "

My mother had this during her final stay in hospital.