Staphylococcus aureus (MRSA)

Staphylococcus aureus (MRSA)


Contact precautions only if open + draining wound not contained by a dressing

General Information

Gram positive cocci in clusters, coagulase positive.

Can be broadly divided into health-care associated (HA) and community associated (CA).

HA-MRSA is associated with many hospital associated infections ranging from minor/severe skin and soft tissue infections to bloodstream infections and severe pneumonia. It also causes many device associated infection and prosthetic infections.

CA-MRSA is associated with skin and soft tissue infections (e.g. abscesses) and necrotizing pneumonias. However, it can also cause many severe infections as with HA-MRSA.

S. aureus (both MSSA and MRSA) can cause the following:

  • Skin and soft tissue infection (purulent)
  • Bone and joint infection
  • Bloodstream infection
  • Infective Endocarditis
  • Pneumonia
  • Infection of prosthetic devices
  • Others