what is methicillin sensitive staphylococcus aureus
Methicillin-Resistant Staphylococcus Aureus (MRSA) - Overview. Methicillin-resistant Staphylococcus aureus (MRSA) is a type of staphylococcus or  staph  bacterium that is resistant to many antibiotics.Staph bacteria, like other kinds of bacteria, normally live on your skin and in your nose, usually without causing problems.hese infections can occur among people who have scratches, cuts, or wounds and who have close contact with one another, such as members of sports teams. This type of MRSA is called community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA).