Methicillin Resistant Staphylococcus aureus (MRSA), is a variant of the common Staphylococcus aureus bacteria that are normally found in human nares and on skin. In recent years a variant strain has developed to become a human pathogen that carries resistance to the antibiotic Methicillin that was formerly used to treat these infections. Individuals who are hospitalized, in healthcare facilities, suffering from chronic underlying illness, or those with weakened immune systems are most susceptible to infection by MRSA. The spread of Methicillin Resistant Staphylococcus aureus can be prevented by ensuring that all cuts, abrasions, and skin lesions are properly cleaned and covered, by not sharing personal items that come in contact with the skin such as razors and wash cloths and by frequent hand washing.
Tracy Unified School District. 2008. Community acquired Methicillin Resistant Staphylococcus aureus (MRSA). Retrieved January 28, 2009 from http://www.tracy.k12.ca.us/MRSA.htm.