MRSA

MRSA was first noted in 1961, about two years after the antibiotic methicillin was initially used to treat S. aureus and other infectious bacteria. The resistance to methicillin was due to a penicillin-binding protein coded for by a mobile genetic element termed the methicillin resistant gene (mecA). In recent years, the gene has continued to evolve so that many MRSA strains are currently resistant to several different antibiotics.

Staphylococcus aureus (MRSA) is a type of bacteria that is resistant to certain antibiotics. These antibiotics include methicillin and other more common antibiotics such as oxacillin, penicillin and amoxicillin. Staph infections, including MRSA, occur most frequently among people in hospitals and healthcare facilities who have weak immune systems.

MRSA infections that occur in healthy people who have not been recently hospitalized or had a medical procedures are known as community-associated (CA)-MRSA infections. These infections are usually skin infections, such as abscesses, boils, and other pus-filled lesions.

Here is a link to show you what some cases of MRSA look like http://home.messiah.edu/~ez1154/mrsapictures.html
More about MRSA
http://www.visualdxhealth.com/diseaseGroups/mrsa.htm