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Methicillin-Resistant Staphylococcus aureus (MRSA)

What is Methicillin-Resistant Staphylococcus aureus (MRSA)?

Staphylococcus aureus (S. aureus) is a bacteria that is commonly found on the skin and normally does not cause clinical illness. However, S. aureus infections can occur, and in some cases the bacteria can be resistant to certain antibiotics. Methicillin-resistant Staphylococcus aureus (MRSA) is a bacteria that is often resistant to many antibiotics including methicillin, oxacillin, penicillin, and amoxicillin. Anyone can get a MRSA infection. Hospital-acquired MRSA can cause a variety of infections including sepsis, pneumonia, and bloodstream infections. Community-acquired MRSA typically causes skin infections. MRSA may also colonize the skin of individuals without causing clinical symptoms.

IDOH Quick Facts- MRSA

Source: CDC

Source: CDC

General Information About MRSA

The following resources are intended  for the general public or patients who are looking for more information about MRSA.

What is MRSA?, CDC

MRSA for Patients, CDC

Cleaning and Disinfecting, CDC

IDOH Care of Your Skin Infection

Information for Schools and Daycares

Information for Athletes and Athletic Departments

Page Last Updated: September 2025