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An outbreak of cutaneous aspergillosis in a tertiary-care hospital
E A Bryce1, M Walker, S Scharf
1Division of Medical Microbiology, Vancouver Hospital, British Columbia, Canada.
Abstract:
A cluster of four cases of surgical and burn wound aspergillosis occurred in a 900-bed, adult, tertiary-care hospital. The source was traced to the outside packages of dressing supplies, which had become contaminated during construction in the central Inventory Control area. This resulted in patients with large exposed surface areas being inoculated directly with Aspergillus spores.
Insights
Four patients developed wound aspergillosis from contaminated surgical dressing supplies. This hospital-acquired infection highlights the risk of Aspergillus spore contamination during supply chain management and construction.
Area of Science:
- Medical Mycology
- Hospital Epidemiology
- Infection Control
Background:
- A cluster of four surgical and burn wound aspergillosis cases was identified in a tertiary-care hospital.
- Aspergillosis is a serious fungal infection, particularly in immunocompromised patients or those with large wounds.
Purpose of the Study:
- To investigate the source and transmission of a cluster of wound aspergillosis cases.
- To identify the environmental contamination source leading to patient infections.
Main Methods:
- Case investigation and epidemiological analysis.
- Environmental sampling and source tracing of contaminated supplies.
Main Results:
- The outbreak was linked to Aspergillus spore contamination on the exterior packaging of sterile dressing supplies.
- Contamination originated from construction activities within the central Inventory Control area.
- Patients with extensive wounds were directly inoculated with Aspergillus spores from the compromised supplies.
Conclusions:
- External contamination of medical supplies can lead to severe hospital-acquired infections like aspergillosis.
- Effective infection control requires vigilance over supply chain integrity, especially during facility renovations.
- Preventing spore inoculation in patients with large exposed surface areas is critical.