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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
12:18

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)

Published on: February 9, 2011

An outbreak of methicillin resistant Staphylococcus aureus on a burn unit: potential role of contaminated

J M Embil1, J A McLeod, A M Al-Barrak

  • 1Infection Control Unit, Health Sciences Centre, MS673, 820 Sherbrook Street, Manitoba, R3A 1R9, Winnipeg, Canada

Burns : Journal of the International Society for Burn Injuries
|October 16, 2001
PubMed
Abstract

Insights

A multi-institution outbreak of methicillin-resistant Staphylococcus aureus (MRSA) was linked to environmental contamination on a burn unit. Prompt intervention, including equipment replacement and decolonization, successfully controlled the spread of this resistant bacteria.

Area of Science:

  • Infectious Diseases
  • Hospital Epidemiology
  • Microbiology

Background:

  • A significant outbreak of methicillin-resistant Staphylococcus aureus (MRSA) occurred across two institutions, involving a plastic surgery/burn unit (PSBU) and a community hospital.
  • The outbreak involved 12 patients, with cases identified between September and December 1996, leading to prolonged isolation periods for affected individuals.

Purpose of the Study:

  • To investigate and report on a multi-institution outbreak caused by a single strain of MRSA.
  • To identify the source and transmission routes of the nosocomial MRSA strain.
  • To evaluate the effectiveness of control measures implemented to contain the outbreak.

Main Methods:

  • Pulsed-field gel electrophoresis (PFGE) was used to confirm the genetic identity of all MRSA strains.
  • Environmental cultures identified a contaminated shower and stretcher in the hydrotherapy room as the presumed source of transmission.
  • Control measures included closure of the unit to new admissions, replacement of contaminated equipment, and patient decolonization therapy.

Main Results:

  • All identified MRSA strains were identical by PFGE, confirming a single source outbreak.
  • Environmental contamination of a shower and stretcher was identified as the likely transmission vector.
  • Implementation of new hygiene protocols and decolonization therapy successfully terminated the outbreak.

Conclusions:

  • Environmental contamination poses a significant risk for nosocomial MRSA transmission in burn units.
  • Effective inter-institutional communication and collaboration are crucial for managing patients with antimicrobial-resistant organisms.
  • Prompt identification and control of environmental reservoirs are essential for preventing the spread of healthcare-associated infections.

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