What Is a MRSA Infection?
MRSA is the abbreviation for methicillin-resistant Staphylococcus aureus. Staphylococcus is a group of bacteria, familiarly known as staph (pronounced "staff"), that can cause a multitude of diseases as a result of infection of various tissues of the body. Distribution of S. aureus is worldwide, and therefore many people have this bacteria in their bodies meaning they are carriers or "colonized." However, in 1959, methicillin, an antibiotic closely related to penicillin, was introduced to treat Staphylococcus and other bacterial infections. Within one to two years, Staphylococcus aureus bacteria (S. aureus) started to be isolated that were resistant to methicillin. These S. aureus bacteria were then termed methicillin-resistant. MRSA usually show resistance to many antibiotics.