Methicillin-resistant Staphylococcus aureus (MRSA) is a strain of the staph infection resistant to beta-lactam antibiotics (penicillin, oxacillin, amoxicillin, and methicillin). MRSA is a bacterium commonly carried on the skin or in the nose of healthy people who generally do not exhibit any symptoms. The CDC reports that an estimated 25 – 30% of the population is colonized with Staph and only 1% with MRSA; meaning, the bacteria is present, but not causing an infection. MRSA presents in two different environments: Community Associated MRSA (CA-MRSA) and Healthcare Associated MRSA (HA-MRSA).

View PDF

Return to Library