Methicillin-resistant Staphylococcus aureus (MRSA) is a bacterium responsible for several difficult-to-treat infections in humans. It may also be called multidrug-resistant Staphylococcus aureus or oxacillin-resistant Staphylococcus aureus (ORSA).

MRSA kills about 18,000 Americans each year.

• Guidelines for Reducing the Spread of MRSA
• MRSA Prevention Brochure