Pathogens
Staphylococcus aureus (MRSA)

Staphylococcus aureus (MRSA)

Precautions

See 'Additional Information'

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.

Injection drug use is an important risk factor for MRSA.

Can cause a wide range of clinical syndromes

  • Pyogenic skin and soft tissue infection
  • Osteomyelitis
  • Endocarditis
  • Abscess
  • Cellulitis
  • Pneumonia
  • Empyema
  • Infection of prosthetic devices
  • Others
  • Enhanced M Contact Precautions
  • Contact/Droplet precautions for MRSA pneumonia