投稿分類 群突發處理

主委發表種類: 壁報

投稿標題(中): 灼傷病房MRSA感染之偽群突發

投稿標題(英): A Pseudo-Outbreak of methicillin resistant Staphylococcus aureus in a burn ward

投稿摘要: Background: We investigated a pseudo-outbreak of methicillin resistant Staphylococcus aureus recovered from wound specimens obtained during hydrotherapy equipment in a burn ward.
Methods: During a 2-week period, methicillin resistant Staphylococcus aureus wound infections developed in 5 patients of whom had had hydrotherapy before isolation of the organism from their wounds. An outbreak investigation including retrospective and prospective studies using chart review, environmental sampling and pulsed-field gel electrophoresis of selected isolates were performed by the Infection Control Committee.
Results: All patients had received hydrotherapy during these 2 weeks. Outbreak control required multiple interventions, including contact isolation of colonized and infected patients, monitoring the practice of personnel, use of isolation rooms and enhanced environmental disinfection. Investigation revealed that the outbreak had begun coincident with the discontinuation of the use of sodium hypochlorite as a tank disinfectant and had stopped when its use had been resumed. Four clinical isolates involved in this apparent outbreak showed different PFGE patterns.
Conclusions: Environmental contamination is a potential source of nosocomial MRSA transmission on a burn ward. Notification among institutions and community care providers of shared patients infected or colonized with an antimicrobial-resistant microorganism is necessary.

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