Staph Skin Infections and MRSABy Vincent Iannelli, M.D., About.comAbout.com Health's Disease and Condition content is reviewed by the Medical Review Board MRSA is an acronym for Methicillin Resistant Staphylococcus aureus, a type of bacteria that has become resistant to many antibiotics, including methicillin, penicillin, amoxicillin, and cephalosporins. It is routinely pronounced M.R.S.A. - not MUR-SA. Although once limited to hospitals, nursing homes, and other healthcare facilities, MRSA infections are now very common among healthy children and adults in the community. Your pediatrician will likely suspect that an infection, such as a leg abscess, is caused by MRSA if it isn't improving with routine antibiotics. In that case, the abscess may need to be drained or the would need to be changed to a stronger or different antibiotic to treat the infection.
